I'm so sorry that your issues with Lyme have ramped up again!!
I'm hypothyroid and I too will tell you that you need to see a doctor, but you need to make sure that they actually know what they are talking about
!! I had one ENT refuse to do any testing and wanted me to go in for surgery on my throat!! He refused to consider that I had thyroid issues at all. Scary.
So the best site and place to find a good doctor that I know of is STTM - Stop The Thyroid Madness www.stopthethyroidmadness.com/
That site will also help you learn why Synthroid may not be the best thing you can be on for this as well. I was on Synthroid for Hashimoto's & being hypothyroid and it did very little for me. So when I really started having issues, I found a doctor - through STTM and I now am being treated for hypothyroidism with natural thyroid meds that help provide a more balanced hormonal approach - Armour thyroid.
Lyme is known to cause thyroid issues, so I'm glad you aren't putting this off!! Many of us here are needing to take thyroid meds, so ask any questions you may have!!
Herb only treatment for Lyme & Bart ended 12/11 - no active symptoms for 2 yrs -Herb only treatment for Babesia ended 12/12www.healingwell.com/community/default.aspx?f=30&m=2977364
Had Lyme, Bart, Babs, RMSF, Ehrlichia, Myco, Anaplasmosis, EBV
New Lyme case 8/2014 - Healed 1/31/15
*I can usually post a link to any info that I post. Wish to see a link? Please just ask!