Of course you need to follow your doctors advice, but sounds quite a bit like anxiety. The best cure is getting back to doing things you used to do. Get out there and perhaps just put a coat of wax on the car. Try a glass of wine before going to bed at night. (if your doctor approves) and exercise, again if doctor allows. Anxiety is very powerful, and can be dangerous. My wife and I also had a very challenging year not so long ago. It started with one of our dogs getting lung cancer, and us having to put him down. Then numerous health issues for 3 of our parents had us very run down. Fortunatley te past couple years have been better. We are still blessed with our parents also! Beleive it can and will get better.