I'm 18 and weigh about 110-125 and am about 5'7.I aparently have a fast metabolism and I want to gain weight.I used to work out but all it did was make me skinnier so now I'm just lazy. I wanted to know if it could be able to get a medical marijuana card from a doctor or something? I used to be a meth and ecstasy and coke addict. Whenever I get a drug craving I go buy some weed to get my mind off of that and it works. How can I go about askin a doctor or something?