Had my tummy tuck four days ago. I weighed 155 and am 5'7 age 31. Doctor told my mom he removed 8 pounds off of me. I weigh 165 today and that seems like alot since I should actually weigh 147. I didn't know you could swell up to 18 pounds. Also having major bladder issue like feels like a bladder infection so I am up and down alot going to the bathroom not getting much out at a time. Any advice ?