armour thyroid

Hi, im new to this forum. I have been diagnosed with lyme starter treatement 4 months ago. My thyroid levels fluctuate by themselves one month is 2.89 anothter 8.25, free t4 is 0.89 and t3 2.7. I also have antibodies antithyroidglobulin of 17 high from lab corp. I suffer from neuroapthy. Decided to start armour thyroid at 30 mg and after 4 days my neuropahty severly increase. its been 1 wk and no change. anyone have any ideas? I stopped the medication. Do ii have hashimotos and what can cause the tsh to fluctuate so much without medication and what can cause antithryroidglobulin antibodies?

thanks