My brother in law behaves a lot like that. He has bi-polar disorder, social anxiety, is abstinent, and a type two diabetic. He gets wonky when he doesnt take his meds on a regular basis. Oh and he still misses drinking a lot as well. He had done 90 days inpatient, 90 meetings in 30 days, than was slowly brought down in number of meetings until he hit six months. He has been dry 5 years but not much has changed that I see except he maintains regular employment