Hi, Welcome to Health care magic forum.
As you say, your husband is on
diet pill,along with other medicines.
He got mood changes, and ill tempered moments.
These could be due to the pills,
hypertension, diabetis as they are prone to increase, though on medicines at this age. or by age it self.
I advise you to consult a physician for diagnosis , he may stop the drug.
Take more of green leafy vegetables, pulses, sprouts,and
protein rich foods to have a good health.
Wishing for a quick and complete recovery. Thank you.