My sister had hers taken out. Day surgurey as well. Two days later she was having abdominal pain. A day later the pain was bad enough she was crying and shaking. Took her to the ER. They were convinced she was constipated and gave her 2 enimas in 6-8 hours. She stayed in the ER for 2 nights with no relief. They dismissed her. She was back 2 days later still in pain. Finally, someone ordered an MRI (i think). It showed she was leaking bile into her abdominal cavity for a week from several small ducts that should have been closed off. After a second surgurey and a scar from her belly button to the side of her breast she is fine. It's been almost 2 years, she had to dramatically change her diet. I don't know what the trigger foods are for her, but it was definetely a process.
Hence why I don't think it should be day surgery!!! geesh, they are removing a significant organ IMO. I am glad your sister is doing better but what a nightmare and exactly what I feared having this surgery. I am glad I didn't have those issues.
My newest issue right now is that my stitches under my skin are starting to push through one of the incisions. I will watch it for a day or two and see if it gets any better. oy vey.