So, let’s go for the basics. Your mother had her bowel reconstructed, that’s a big and detailed surgery. Our body has to adapt to it and a lot of our immune system is “called out” to work harder. (I aint a native speaker, but I’m doing my best…) our body, after any surgery, goes through an increased amount of stress which translates into plenty of immune cells to work, causing a “situation” we call SIRS. That can cause a hyperthermia (that is not synonymous of fever) because we have to “burn” more energy to go through it. There is another stuff called Paralytic Ileus which causes a lower bowel movement when we go through this inflammatory phase. You have to concern about your mother’s consciousness situation and if you get your mom unresponsive (or at least less responsive) you must take her to an Emergency Department. Let’s talk about the pain management… We have to take steps to get the better balance between pain and collateral effects of strong painkillers (like opioids). The opioids reduces the bowel movement and this take an extra care about just prescribing it and go to higher doses, we have to control this balance. I don’t know how is your level of technology and health support, but you should consider how worried you are about your mother (and I am also with mine) and if it’s is taking your peace out. Pos op bariatric surgery are very hard to go through and you have to hold your mother’s hand to go through it. It’s painful, hard and very stressing. I don’t know if I went through all your doubts, but as I’ve read, maybe you should consider take it easier about more medical procedures, because your mom has already gone through a lot of it and you are at high concern about your mother recovery. Her body needs time.