Its been two months since my gynecomastia surgery, is it okay to start lifting weights and doing push ups?

I advise my gynecomastia
patients to abstain from exercise for 6 weeks following their procedure. Every
patient is different and recovery should be geared towards the individual. Once
the patient has healed enough to begin exercising again, they need to take
things slow and approach exercise as if starting from the beginning. Your
surgeon is the best resource for advice on your post-operative care. If you
still have doubts as to whether it is too early to begin exercise, listen to
your gut and wait until you are 100 % ready.

I would follow your doctor's recommendations. If he said you can start working out it seems reasonable at 8 weeks after surgery if you have healed well/