For some reason after I tried smoking weed for the first few times (i have discontinued and never plan on doing it again) I have a unexplained tiredness in my legs.. I dont know if its the dope or just a.. Something, being why im asking.. I just got a comp two years ago and has decreased my stamina and leg muscle staminia quite a bit.. Ive been working out my legs at the ymca, I can lift 500 pounds with my legs, and im 14.. But for some reason right before I go to go play hockey and alot of the times just during the day and get this tiredness in my legs and have very low muscle stamina in them.. I work them out alot but just dont do alot of cardio with them.. May I ask if any1 else has this problem or how to cure it? Plz and thx