abdominal pain

It's been 3 months now since my husband developed a illness which no doctors have been able to help us with. One night he became ill with diarrhea and vomiting and since that night, he has had loose stools, chronic insomnia (getting 3 hours of sleep on a good night), headaches, chest pain...

About one year ago, I noticed one day that I felt pain when I would press a finger to my belly button. Back then, I had recently begun taking Apple Cider Vinegar diluted in water and thought there was a connection. I do not believe there is though, because the pain would come and go independent...