I don't know. There doesn't seem to be a lot of good studies. That should change if the feds do the right thing and take weed off of schedule 1 here in the US. It is insane, meth and cocaine are schedule II and prescribed by doctors. I had a septoplasty to try to cure my headaches and they shot me up with cocaine to constrict my capillaries and this was at a military hospital and ADHD patients can get methamphetamine prescriptions. Yet, a natural plant is banned.

I think self-medicating can be dangerous but I would hesitate to tell someone to stop if it is truly helpful. So I don't know what else to say except to take caution, if it is illegal in your country, it could really ruin your life depending on how draconian the laws are.

I am fortunate to live in a US state where weed is 100% legal but even if I wanted to try it, it is taxed so highly(ha!) it is crazy expensive at the weed stores. I have been around people smoking it and just second hand smoke cleared my headache out so I have been tempted.

It is 1 AM Pacific Time here, you will probably get much more informed opinions in a few more hours.