Im a 20 year old male that recently joined the military. Prior to joining i never worked out or played any childhood sports and i pretty much ate what i wanted and i still remained slender. But since i joined and have been working out ( especially running) I have very sharp pains in im left knee and i was diagnosed with tendonitis. But I think that it is getting worse and I'm afraid to go back to the doctor because the last time i went they suggested surgery and that terrifies me because i may get kicked out of the military and my knee my never be the same. Should I go back to the doctor or just wait it out????? 8-|