What Causes Frequent Vomiting, Abdominal Bloating And Cough?

My husand drank for most if not all of his life. He was once into hard liquor, but now its just beer but alot of it. He has lost alot of weight and what looks like muscle mass. he has a bloated stomach but still eats at least one pretty heavy meal a day. He has started making these gagging noises and does throw up, in the middle of the night, the morning, probably even the afternoon, but i m not around him them. He also coughs alot but he also smokes heavily. He also sleeps alot and has become very forgetful. He won t go to the doctor and when i google what he has, it sounds like it could be a number of things. Could you please give me some insight into what you think he might have? Thank you.