Why doesn't the FDA regulate medical marajuana?

I take a pain killer that may cause a stroke. I really hate taking it but after 4 days of screaming I grab it. The pain goes away. I'm near my death; why should I have to endure that. Stop and think about it. What if arthritis medicine was allowed in Colorado but not in your state? They are coming out with a synthetic pharmaceutical drug using thc without the high. I bet that cost a fortune of research. How much are you going to be paying for that medication? We just sit back and do nothing. I quess by the time it clicks how outrageous it is; we are sitting in their death beds just like I am. Screaming with pain 4 days then taking some type of dangerous pill.