Hey there!
Sorry for the late reply, I missed the post! The weight gain for me was simply because I was so restricted in what I could eat and how much before that after the operation, well... I had ice cream for the first time in 10 years, could enjoy bread with dinner, pasta beyond a 5-year-old's portion, etc. I've been living again!
My wife has told me she prefers me with weight as my thinness was due to being ill and I looked ill. I feel better, healthier, and good about it all. If I get too big, well, I'll eat less and move more. lol
Regarding movements - best I've had in 15 years, I can't believe how good my system is working now. Solid, easy to pass, and all done in one go rather than in the past when the toilet could be a 2-3 hour experience.
I am lucky and thrilled with the outcome.