My wife had stomach pains back in early 2013, took her to the ER and they put her in ICU for over a week. They did a CT scan and the doctor told me they had found a "mass" attached to her lower intestine, and that they would "save her". There wasnt any surgeon locally who could operate on it, so they sent her by ambulance 240 miles away to Stanford University Medical Center, where they put her back into the ICU and put her under the care of an Oncologist (cancer specialist) and did more scans. It turned out she had a gallstone the size of a small egg there, not cancer. They removed the stone after another week in Stanford's ICU, then released her to come home for a few weeks, after that time I had to drive her back to Stanford so the Oncologist (Dr. Visser) could remove the gallbladder. After another week and a half in the ICU she got to come home, with a colostomy bag attached to a hole in her stomach to drain the excess **** and stomach contents. She was that way for another near month before I could drive her back to Stanford to have the tube removed.
She's been fine ever since.
Its no fun, and I hope you have an easier time of it.