May be your depression is partially treated.over eating can be a symptom of depression.did you had tests to r/o any problems with your
thyroid. As it also increase your appetite.
Your medication needs optimisation.
Next Steps
Try to eat healthy like lots of fruits and vegetables and whole grain chapattis etc so that you feel full for longer time. Over eating leads to weight gain. If you eat healthy weight gain won’t be a issue.
Health Tips
Consult your own psychiatrist if they are not available you can consult me through Practo consultation