big stomach after hernia repair

hi..Im having the same problem as everyone else...i look like im pregnant..my stomach is hard..im having pain in my lower left back..i hear really weird noises in my stomach when i cough or bend over...i had the surgery 7 weeks ago..went back to work last week and i was embarassed for anyone to see how big my stomach was..i asked the doctor about it and he said that most of that is me..well my pants didnt roll off my stomach before surgery...he said i could still have air and fluid in there from the surgery..in other words no answers,,,i go back in 2 months he says i will probably need pysical therapy to build my stomach muscels back up...i dont know what to do either..anyone have any answers? thanks