Abdominal Pain can't eat or drink ?

For the last week I have been ill I came down with a stomach bug I think and it drained all my energy the day after I was completely out of it. I felt like deja vu feeling all day once I began to feel better, I noticed abdominal cramps in all four regions. I can't eat without getting them if I don't use the bathroom right away I get them. However if I dont eat I have absolutely no energy my kidneys have also been cramping. I'm really worried because I have no idea what's going on with my body. Any ideas?