I was banded on 11/12 and expected to go home later that day. I was unable to keep anything down but kept attempting to drink. I went home on 11/15 but ended up back in the hospital less then 24 hours later due to dehydration.
Some people are more sensitve and swell more, my esophagus was swollen above the band. When I tried to drink my esophagus would spasm trying to pass the Fluid down to my stomach which in turn caused more swelling, my saliva wasnt even able to pass. I had an MRI and they could see that the band was on fine but I had serious swelling and any fluid hitting it was causing problems. They put a tube down my nose (uncomfortable but at that point I was willing to do ANYTHING) and that kept fluid out of there and allowed the swelling to finally go down. 48 hours later I did a barium swallow and everything passed fine.
I too had serious regrets, no one is really prepared for complications. Please hang in there, she is where she needs to be for the best care and will be home soon enough. I finally feel back to normal and pleased with my decision (26 pounds down!) and it wont be long till she does.