What specialist are you taking your husband to? I would think gastroenterology. Have they done any testing? Bloodwork? Ct of his abdomen? Have you told them how severe it is? That your poor husband can’t go on like this? Explain to his Dr his quality of life right now. Sometimes you really have to advocate for yourself or a loved one. Don’t take nothing for an answer. I had severe nausea with all my pregnancies for like 6 months straight. I didn’t want to get out of bed. Have they tried Zofran? Compazine? They helped me.