As your father has Hypo-thyropid, it sounds like you have inherited it from him. All the symptoms sound like it and having flu can severly drain your immune system.
Thyroid Throu is the best natural herbal alternative on the market and I am supplying to a lot of people with thyroid problems. It basically clears out the thyroid of all blockages so that it can work for itself again. It will bring it back to normal, and within weeks you will feel your energy starting to come through again.