Personally I prefer BRAND (Levoxyl)
to generic T4, Levothyroxine. (never taken Synthroid) Your Doc has to mark the little DO NOT SUB
box on prescription or pharms WILL do this. One time I had a pharm tech tell me "b-u-t,,, it's the SAME med"
when they tried to substitute. Had a lil chat with the head Pharm then, she put a note on my file NOT to SUB.
I've never had the symptoms you describe but did feel like a cloud was IN my HEAD on Levothyroxine.
From what you've written, sounds like that Endo is a QUACK. And that perhaps you'd do better with primary-Dr than "these symptoms had nothing to do with my meds" Endo!
What dose of Cytomel were you taking? I find it curious they took you off it, when Cytomel very nicely lowers TSH, relieves brain fog, etc. Some people do better on combo of T4 (Synthroid or generic) and
. I know combo was MUCH preferred by my body