Hospitalization

My best friend in Kentucky has landed in the hospital. She's been experiencing some stomach pains for the last couple weeks. She hit the doctor who sent her to a specialist for a few tests. When she went in to get the results of the tests, he admitted her to the hospital because all the tests came back negative. She was getting more tests done today but I haven't heard anything yet. They've already eliminated Gal Bladder and Appendix though. But I'm getting worried about her because they don't have a clue what's wrong yet.