Hi. I've been diagnosed with graves 3 years ago. Off the block and replace for 9 months. Overall been feeling good but every month or so I have a massive dip and all the usual symptoms come back. Anxiety, joint pain, flakiness, dry skin, memory loss, sore tired eyes etc. strangely when this happens and I get bloods investigated the thyroid appears normal so I'm always left feeling a little isolated in what's going on. Just got a new Endo and he instructed full bloods. Results are : TSH 1.7, free T3 13.1, free T4 4.6. Vitamin D 14, b12 is 247. So I'm going to see my Endo on Monday but I want to see what your opinions were on the bloods as they stood right now as I feel like I'm having the same conversation each visit. This is the first time on testing b12 and vit d. My previous Endo never asked for those. I don't understand how the vitamin deficiency could have such an impact on my mental state. I'm only anxious when I feel like my thyroid is going a bit haywire otherwise it's ok. At the moment real bad palpitations.