Hi! Haven't been on the forum for a while due to a spell of feeling very very well indeed! Had a new found burst of energy for three months and felt like a teenager again! The palpitations, heartburn, chest pain, insomnia, dizziness, tiredness, anxiety, dry skin, extreme itching at night, and tingling in my hands and feet had completely vanished!! I felt like a new woman! Although I have always questioned my thyroid function with my GP, she has always said that I have borderline results. TSH fluctuates between 2.6-3.8 and FT4 is usually between 9-10 (ref range 10-24). However in August she tested my B12 and iron levels. B12 was 212, (ref range 190-800) and I can't remember my Ferratin levels, but she gave me some tablets because it was too low! I decided to take some b12 supplements myself, and within three weeks I felt 100% better. However, 6 weeks ago I had a constant nasty headache that lasted for a whole month!! Then suddenly the headache disappeared, and I had this shooting pain down the back of my spine whenever I swallowed. I went back to see my GP and when she touched the front of my neck I screamed in pain! She said I had thyroiditis?!! She checked my thyroid levels but said that most probably my bloods wouldn't show anything for up to six weeks. My thyroid levels came back better than they had been for years!! TSH was 2.0 and FT4 was 14!! I am still on the Ferratin tablets and B12, but 5 weeks after the "thyroiditis" I have started to feel rubbish again. Heartburn, itching, tiredness, palpitations, and lack of energy has returned..... What on earth is going on??! Can anyone give me some answers please?!