@johnny12345, Do you know what caused the 25 lb weight loss before your surgery? Was it the reason for the surgery?

My husband had no symptoms beforehand and his weight was steady up to the day of his pancreatitis attack which came on suddenly. The doctors think that a gallstone was the cause, although it must have already passed when he was admitted to hospital. He was in the hospital for 5 days prior to being able to have laparoscopic gallbladder surgery. That is when he began to lose weight. The surgeon called it his 5 day fast because he was too sick to eat anything. After surgery, when he was supposed to try to eat, he had nausea so more weight loss. He is a thin man, so any weight loss is it too much. After 3 more days in hospital, he came home, and only sipped ginger ale and tea. After a couple days, he remembers eating some chicken noodle soup, and half of an English muffin.
We don't remember any dizziness, only being tired and needing to take it easy and nap - that was hard for him to accept. He slowly began to walk a little longer each day, and as his strength returned, so did his energy. He ate small bland diet and we gradually introduced some normal foods. I always asked him what he felt like eating, or what would taste good to him.
As a time comparison, his surgery was 1st week October 2017, and I remember that by Christmas that year, he was okay to eat lasagna for dinner.
His weight has returned to his normal weight.
I don't know if this makes a difference, but he only used the pain drugs for the first 2 days. After that he only took tylenol.

I hope that you feel better soon. Have you had a post op visit with your surgeon? This is something that you will want to discuss with him. Also your primary care doctor, who knows you, should be able to investigate what is going on and what, if anything, should be done to help you.