Diabetes Type 2 Support Group
Type 2 Diabetes is a condition in which the body either does not produce enough insulin or does not make efficient use of it. Insulin is a hormone needed to convert food into glucose, a sugar that the body uses for energy. Without enough insulin, glucose can accumulate in the blood, and can cause serious health problems such as heart disease and strokes and organ damage...

Sometimes people don't even realize they are doing this
My husband had a lung transplant nearly two years ago. He is on a crazy number of meds and does quite well. He does not have mood swings, but does get serious side effects.
Having said that, I'd just like to add, take care of yourself. Maybe you already are. I don't know enough about you to make presumptions. I just know many female spouses do a much better job of taking care of others than we do ourselves, so hope you are taking good care of yourself. Hugs and Smiles and I wish I could be more helpful.