So some thoughts on CBD/THC:
CBD oil is almost exclusively extracted from hemp, which is a subspecies of the cannabis sativa plant (saying that it's the male versus female variant of the plant is an oversimplification, although many people claim this). Hemp contains very little THC (varies from 0.03% in industrial hemp to a couple percent in medicinal hemp), and has many uses throughout the world. It is legal (the industrial variant) in all 50 states, although its close association with marijuana has led to barriers to its use (also the lumber and wood pulp industries have lobbied hard against it).
All variants of cannabis have a dozen or more "cannabinoids", which are a class of compounds including CBD and THC (the two with the highest concentration). THC is the only cannabinoid which causes psychoactive effects (the "high" associated with marijuana use), but others have varying benefits and effects on the central nervous system which are not well documented at present due to the stigma against marijuana impeding solid research.
What JLT and others have tried is actual "cannabis oil". This is oil that's extracted from the marijuana variant of the cannabis plant, and has varying amounts of THC. Some variants of cannabis oil, such as the now-infamous "Charlotte's Web", have been bred to have extremely low THC (<1%) and extremely high CBD (>50%). Others have a more balanced amount. It's common to see oils that are "90% THC, 7% CBD".
In my opinion, CBD is amazing for relaxation in combination with the other cannabinoids and natural terpenes found in both hemp and marijuana. Sadly, the CBD in actual marijuana seems FAR more effective, because THC boosts its efficacy. This creates problems - first of all, in many places THC is still illegal, and even if it is legal you can't exactly get high and drive to work so maintaining a consistent blood level of the drug in order to experience alleviation of symptoms becomes difficult.
The best effect, for those of you who want to try this and live in a legal jurisdiction, is to go to a dispensary and acquire a "high CBD strain" of marijuana oil. The biggest impediment to this is that in many places (my own locality, as an example) these strains are reserved for those with medical marijuana prescriptions.
The big question here is "does this work?", of course, and the answer isn't simple. JTL has had a cessation of symptomology (cheer!) but it is my firm belief that in order to see any benefit, one has to be diligent with application of the medicine, which can be difficult to balance with family, work, and other obligations since even at low doses marijuana tends to make one a bit "dopey" or "silly".