I think I may have torn my ACL but I'm not sure. It's been almost two months, what would be the symptoms?

My dirt bike fell while I was riding it and pulled my lower left leg out while I fell to my right. After a minute or two of shock I could limp back to my house but that night and the following day I couldn't put any weight on that leg or jostle it at all without it hurting badly. it's been about a month and a half and I can walk on it now just fine without it hurting but it's not completely stable. It's as if the healing sort of just leveled off. Twice I've strained it too much by turning on my leg quickly and I heard it pop/grind. The first time my knee gave out completely and I fell (two weeks after initial injury) and the second time it hurt for a few seconds before I was able to walk again (just a little over a month after the initial injury). After both incidents my knee became swollen for a few days and was sore but I was able to still walk. Any insights as to what I could have done would be much appreciated! :D