I have had very bad stomach pains since I was a kid with no explanation as to why but recently its gotten worse. One sip of anything alcoholic and it s like I have a virus with chills fever vomiting and diarrhoea. I m now experiencing slight headaches with a faint feeling when I walk , kinda like I m under water. This occurs no matter what I eat or drink. I have shoulder and neck pain also paired with the hurting stomach and diarrhoea. I really need answers I miss about 1 day a week from work because of this.