weird lab works

Constant dizziness and weird lab works

Hi, i have 2 problems. First of all, it s very strange to me that last month my TSH was 11 after a month is 2. This fluctuation is crazy and i am not feeling very well. Also,my FT4 is a little bit high but i have Hashimoto for sure. Even if my TSH is so low, i am not feeling great at all. I am always dizzy and weak. I checked my heart multiple times and i also had a brain MRI. Everything was fine. I don t know why i feel this way. Can be this drastically change from very high TSH to very low? And about the dizziness i don t know where to go anymore.