You are not losing your mind at all, it is perfectly normal. Don't try and "break the stall" as it is precisely what your body should be doing at this stage. "Only" losing 40lbs in a month is an incredible amount of weight in that time period. The industry average according to my surgeon is 25 lbs.
Fat is not being "redistributed", your body is just using reserves to complete the healing process. Adaptation cannot happen at the same time as the loss. You have the about a year of the drastic weight loss ahead of you, don't worry. As long as you follow the plan and do not fall back into what was considered "normal" habits before, the scale will continue to go down and then maintain.
Since you are still so fresh from surgery, I would heartily recommend you take measurements of your chest, waist, hips, thighs, and arms. That is the one set of metrics I did not track and I really wish I had done so.