My left leg is stronger than my right leg what should I do?

I will try to make this short as possible.But I feel most of the details will help explain why I am worried about this and how I got to this point.

Almost 1 year ago I had surgery on my right knee for an ACL replacement(I had one, but it was torn and shot out badly from a football injury) the doctor told me if I was interested in doing sports again or joining the military I would need a new one. If I don’t do the surgery I am at a much higher risk for twisting or re injuring that knee and the military was pretty much unlikely.

I proceed with the surgery. It went great and the recovery sucked ,but went good too. I was able to walk sooner then I thought. Did the rehab and once I could start working out and running I did and built myself back up slowly.

Anyways cut now to almost a year later and after 4 months of PT to get ready for BCT I feel great and I finally passed the 2–2-2.

However I am noticing that my left leg is much more toned and muscular. And in the past month or so when I run hard or do sprints it feels like my left leg is taking much more load then it should. I also had a nasty cramp/strain in my left quad a while back.

Yet my right knee and leg feel fine…Go figure….Also my right hamstring looks puny and much “thinner” than my left. I am worried this could become more worse later on.

Any suggestions? Should I just do more exercises for my right leg? Will this just correct itself over time?

The doctor suggested steroid injections once before on my right leg/knee. Is this a good idea?

You all have been very helpful in the past and hope you can give me some advice again.