Ten Days Post Op Gastric Bypass Odd Pains and Weight Loss

I went to the doctors for my post surgical check up yesterday and I weighed in at 191 lbs!!! I had another appointment the same day and weighed 191 there too. When I went home I reweighed myself and my scale said 194....same as it did thatmorning Weird. My scale obviously is the one off lol. Anyway, I was soooo happy! I really didn't expect that weight loss. That was ten lbs in nine days! I was allowed to proceed to stage 2 diet and tried my first egg white. I ate 2/3 of it. I could have eaten more probably but I was afraid to overdo it. I ate another one later in the day, this time the whole egg white, with a pinch of mozzarella on top and it was delicious!!!! I put on size 16's this morning and the legs are loose....yay! Yesterday, I had an odd dull pain in my left shoulder and the nutritionist said it was probably gas. Today I have an odd dull pain under my left rib cage under my arm....I took a Gas x and feel a little better.Both pains felt like someone blew up a balloon and lodged it in there. Still grateful for this surgery and so thankful for my new lease on life