I suffer fr migraines. Currently having Botox injections every three months for the last three years. This has helped went fr 24 to 30 migraines a month to 6 to 8 , now I'm back up to 14 to 20 a month. My doctor thought CBD oil might help. I have also started having anxiety attacks for a year now. I'm really confused with the dosages. Any thoughts would b helpful

2.)   Here is a direct statement from a study published by the New England Journal of Medicine that involved 120 children from different parts of the world.  The conclusion states, “Among patients with the Dravet syndrome, cannabidiol resulted in a greater reduction in convulsive-seizure frequency than placebo and was associated with higher rates of adverse events”  View Source
Relevant studies in animal models are summarized in chronological order in Table ​Table1.1. CBD has been studied in a wide range of animal models of general anxiety, including the elevated plus maze (EPM), the Vogel-conflict test (VCT), and the elevated T maze (ETM). See Table ​Table11 for the anxiolytic effect specific to each paradigm. Initial studies of CBD in these models showed conflicting results: high (100 mg/kg) doses were ineffective, while low (10 mg/kg) doses were anxiolytic [59, 60]. When tested over a wide range of doses in further studies, the anxiolytic effects of CBD presented a bell-shaped dose–response curve, with anxiolytic effects observed at moderate but not higher doses [61, 90]. All further studies of acute systemic CBD without prior stress showed anxiolytic effects or no effect [62, 65], the latter study involving intracerebroventricular rather than the intraperitoneal route. No anxiogenic effects of acute systemic CBD dosing in models of general anxiety have yet been reported. As yet, few studies have examined chronic dosing effects of CBD in models of generalized anxiety. Campos et al. [66] showed that in rat, CBD treatment for 21 days attenuated inhibitory avoidance acquisition [83]. Long et al. [69] showed that, in mouse, CBD produced moderate anxiolytic effects in some paradigms, with no effects in others.
Rule #2 – Be consistent with your dosing. Don’t start small and then jump to higher doses. It’s important that your body gets accustomed to the CBD, so gradually increase the amount over time. Also, don’t get discouraged if you do not notice effects immediately – some people have said it took them up to two weeks of daily use before they started noticing positive results.
Could cannabidiol help prevent tumors and other cancers before they grow? A 2012 study showed that animals treated with CBD were significantly less likely to develop colon cancer after being induced with carcinogens in a laboratory.[187] Several studies had already shown that THC prevents tumors and reduces them, including one in 1996 on animal models that found that it decreased the incidence of both benign and hepatic adenoma tumors.[188] In 2015, scientists analyzed the medical records of over eighty-four thousand male patients in California and found that those who used cannabis, but not tobacco, had a rate of bladder cancer that was 45 percent below the norm.[189] Topical products can be used to treat and prevent skin cancers. Continuing research is focused on the best ratio of CBD to THC and the most effective dose level in cancer prevention and treatment.
Heart disease is a growing problem today. In fact, it’s the leading cause of death in the U.S. A healthy diet and lifestyle is a top priority for heart health, but CBD oil can also help. According to research cannabidiol reduces artery blockage, reduces stress induced cardiovascular response, and can reduce blood pressure. It may also reduce cholesterol.
Bergamaschi, M. M., Queiroz, R. H. C., Chagas, M. H. N., de Oliveira, D. C. G., De Martinis, B. S., Kapczinski, F., . . . Crippa, J. A. S. (2011, February 9). Cannabidiol reduces the anxiety induced by simulated public speaking in treatment-naive social phobia patients. Neuropsychopharmacology, 36(6), 1219-1226.  http://www.nature.com/npp/journal/v36/n6/full/npp20116a.html?foxtrotcallback=true
Cannabinoids are a class of compounds that interact with receptors throughout your body. CBD is just one of dozens of cannabinoids found in cannabis, including tetrahydrocannabinol (THC), which is the one responsible for marijuana’s famous high. Medical cannabis is technically any cannabis product used for medicinal purposes, and these can contain THC or CBD or both, said Nick Jikomes, a neuroscientist at Leafly, a website that provides information about legal cannabis. “A common mistake people make is to think that CBD is ‘the medical cannabinoid’ and THC is ‘the recreational cannabinoid.’” That’s inaccurate, he said, because THC is a potent anti-inflammatory and can be helpful for pain.
Finding the correct amount of CBD for you may take a bit of trial and error, especially if you try to do it on your own. Dosage recommendation should be given to you by your Doctor as that is what they are trained to do. Doctor’s base Cannabidiol dosages on the severity of the associated health problems and issues that they are looking to alleviate. That means, it strictly depends on your condition!  There is no specific amount of CBD oil that everybody should take.
Cannabidiol, or CBD for short, is a natural phyto-cannabinoid (or plant-based chemical compound) found in cannabis plants, including hemp and marijuana. Unlike other cannabinoids — namely tetrahydrocannabinol, or THC — CBD does not produce any psychoactive effects, and will actually counteract these effects to a degree. CBD will induce feelings of sleepiness; for this reason, it can be an effective soporific for people who struggle to fall and/or remain asleep due to insomnia and other sleep disorders.
^ Nadulski T, Pragst F, Weinberg G, Roser P, Schnelle M, Fronk EM, Stadelmann AM (December 2005). "Randomized, double-blind, placebo-controlled study about the effects of cannabidiol (CBD) on the pharmacokinetics of Delta9-tetrahydrocannabinol (THC) after oral application of THC verses standardized cannabis extract". Ther Drug Monit. 27 (6): 799–810. PMID 16306858.

In terms of cancer, the suggestion is to have three doses of CBD oil each day, and gradually increase the amount to 1 gram per day. The full treatment is believed to take 90 days. Please note that CBD oil is still illegal in many countries, but there is a significant amount of research being done on its medical applications, and a number of reputable sources have put out guides regarding the use of CBD oil for treatment of many diseases.
The studies done on CBD oil have a pretty wide dose range (anywhere from a few milligrams to hundreds of milligrams). I suggest starting at the lower end (around 10 milligrams) and slowly increasing over a few weeks or months to see what works for you. Some people also do well with splitting the dosage throughout the day instead of taking the dose all at once. As with everything, it is always a good idea to talk with your prescribing doctor if you are on any medications. CBD is generally very safe, but there are some pharmaceutical medications CBD oil could potentially interact with and increase or decrease the pharmaceutical drugs' effectiveness.