Maybe…
I was losing muscle mass when I gained the weight…
At 400 pounds, I was doing 3+ hour sessions at the YMCA almost every morning – swimming, racquetball, weight lifting…sometimes dropping up to 20 pounds of water weight during that 3 hours even though I was drinking a lot of water in between. And, without a car, I walked almost everywhere I went.
At 650 pounds, I was spending almost my entire day either in bed, my recliner, or my wheelchair. I had to relearn how to step up so I could use the swimming pool again, since it had stairs instead of a ramp. When I got out of the hospital in 2016, I could barely step over the lip to get in and out of the shower.