hello i have noted your husbands medical problems..
chronic alcoholics will have hyperuricemia
in predisposed individulas which cause joint pain hence i advice you to get it checked(serum uric acid levels) and if its high,you can take febuxostat
tablets for the same to bring it down.
and regarding freuent motions,gastric problem,headache are all seen in alcoholics,it can be due to
1.acid peptic diseease
I would suggest you to consult a physician for further evaluation