I've Been Taking Percocet At Least The Last 3 Weeks....Besides...on

I've been taking Percocet at least the last 3 weeks....Besides...on and off since Jan 8th when I had my knee surgery....I've noticed I'm very bloated....I don't know if that's because of my back or just stress in general? I see my Gyno in June...I know last year I was having the same problem...