I am 4, nearly 5 weeks post breast reduction and still feel bloated and swollen in my stomach area.

I am 4, nearly 5 weeks post breast reduction with no complications. I was an active person before the surgery but had 4 weeks off work to recover, in which time I did very little. I have a fat/ bloated abdomen (which I never had before), puffy stomach and even my thighs look bigger. I ate sensibly during my time off work and I don’t over eat, or snack. I drink lots of water, I don’t drink fizzy drinks. Have I gained wait?? Or will things settle down now that I am active again?