Knees dont hurt, but cant run. knees just wont move right... help me please! +(on accutane)?

Question

when i run or do agilities, at the beginning its not my knees hurting, after running maybe half a mile my knees start to burn, but when doing agility drills, it is almost at a psycological level.

i am trying to run as hard as i can, but my knees just wont bend right. its as if every time i run i am learning how to again.

im on accutane, but again, its not really pain, i dont care about pain, its that i CANT run.........

i also play football and soccer and have been in football workouts all summer.

someone please help me before football two-a-days start and im harassed, because i cant explain it... it is so weird.

Answer 1

maby you dont strech enough do all of the streches you know. sometimes if your muscles arent loose it is harder to run. also its probably because your knees arent very storng what you are feeling is lactic acid going through them, just keep running and doing sports and eventualy they  will get used to it and not hurt as much. good luck