Knee Pain after 5 months

by Kasm
(D.R)

I tore my knee and had surgery 5 months ago, i had a quick recovery, did my PT and everything, now i have a personal trainer and we work very hard on my knee 4 times a week. Last week i train in the morning and went to play golf in the afternoon, nothing out of the ordinary, no pain while playing, when i woke up the other morning i had ALOT of pain on the left side of my knee and still do, when i work out the pain is gone, but it comes back, it only goes away when my knee is really warm. Has this happen to anyone here?
I think i should go to the Doctor to avoid any damage...i dont know.