Sinus Turbinate reduction cobaltions of adenoid & tonsils and weight gain

Hi, I am post op day 5 of sinus turbinate reduction,tonsil & adenoid removal coblation. I am a 40 yr old female healthy weight and  weighed about 135 before my  midnight fast for surgery and have since BALLOONED to 142! I cant imagine how since the most I have eaten is 2 slices of soft white bread with butter just the soft part, water, jello, Popsicle, broths and very lil cream of wheat.I have liquids such as green tea,pedialite and watered down clear juices.. I am on generic dilaudid every 3-4 hrs for pain as needed, ES Tylenol every 4-6 as needed ,celebrex 2 x daily for 14 days post op,dulcolax  and a liquid that was one time dose dextramethasone on day 3 of post op NASTY stuff..My pain is getting better that I can go about 5-6 hours without strong pill and overlap with Tylenol and be ok. I have just gotten about 6  hours of sleep without snoring waking me up..and tried some mashed potatoes/cream of wheat still too grainy and hurts.. I have no idea how on earth I gained soo much sooo fast?I am up and about for short periods of time like 20 min then exhaust easily..So back to bed I go.. I am just wondering if meds are doing this. As far as my healing my nose is surprisingly very well, some swelling & bleeding day 1 & 2 , but with the saline rinse and nasal spray (only when heavy bleeding next to none) I have had not had any issues. I can breath through my nose while sleeping .I have had a humidifier on which is a BIG help and I do have some post nasal drip not bad or discolored and my tonsils are very sore in am and after eating something with texture like the bread but I guess I am just in shock at the sudden gain without eating..I did go on a binge the days before my surgery knowing I would not be eating for a while..but to put it on in 3 days is odd...HELP I was trying to be optimistic and lose weight : D