Do I exercise enough?

tiktiktik · Yahoo User

I'm sure this question has been asked incessantly.... but I guess I'll jump in there, too.So, I'm 16 years old. I'm incredibly health conscious, but I don't believe that diet/exercise should put a hold on indulgence every now and then....-I ride my bicycle (fixed gear, therefore I cannot coast) an average of fifteen miles seven days a week. Sometimes more, sometimes less. When riding fixed gear your average speed is about 15mph too, again, more or less.-I stair climb (i do a more intense 'stair climbing' work out, making it more vigorous than running) about forty minutes a session. I try to do this four-five days a week, sometimes it's hard because I'm busy...-I lift weights/do crunches.-I walk places if I'm not cycling.So overall, I get at least a bit of a work out every day.... I'm 5'4" and 120 lbs... I have little body fat, it's all muscle...but, I still feel uptight about my weight and my amount of exercise.