Last September I asked for blood tests and found out my thyroid was over active. I then had my bloods done in October and November and my thyroid had changed to underactive. I had a thyroid scan as I was finding it hard to swallow and was told it was enlarged but my new bloods showed my thyroid was almost normal but because I was having so many symptoms I would take 25mg levothyroxine. My bloods have come back normal this week but I am still so tired, unable to concentrate, unable to concentrate. I haven't been at work this year as I am tearful, emotional, no energy, get blurry vision, losing hair, cold, hot, sleeping through out the day and night, weight gain, major anxiety and my brain can't remember anything. I am fed up of only having energy for an hour or so and then needing to sleep as I have run out of energy. I told my doctor this and because I started crying she said do you think you have depression! It can't be your thyroid as your blood test is fine. I have heard that T4 readings can be fine but you can still have all the symptoms, is this true? I need to go back to the doctors with information and a plan, otherwise I will get told it's in my head. I am so fed up of having no energy and need to get back to work. What blood tests should I be asking for? Please can anyone help?