About knee pain
Yesterday night i was playing football and felt a little pain while running at the back of my left knee since it felt bearable and minute i ignored it but by today morning i couldnt bend my knee completely(putting the leg completely straight) while walking as the back of my knee was hurting. I dont feel any discomfort or anything but i am not able to walk without bending my knee as in not able to put completely straight. Could you please tell me the reason.