My Husband Is Having Some Difficulty Breathing (must Take Small

My husband is having some difficulty breathing (must take small breaths or it hurts), had hot and cold flashes yesterday, has on and off intense lower abdomen pain today (he said it's a "pulling pain" or collapsing in on itself), has severe runs, and feels like throwing up but has not. He also had a headache but that might just be because he hasn't had coffee in a while. He started feeling sick Sunday night.