For the last two weeks, my husband is vomiting, upset stomach, can't have a bowel movement and has lost about 20 lbs. He has abdominal pain and says he gets dizzy spells. He gets kidney stones alot and we thought it was kidney stones. He doesn't have the pain all the time, but it very much resembles a kidney stone, except the fainting part. He has a loss of appetite and is afraid to each for free of an attack. The weight loss maybe why he feels faint and weak because he is not eatting. He can't have a normal bowel movement.