Anybody ever heard of Euthyroid Sick Syndrome?

Hi there. I have heard of it and have something sort of similar called euthyroid graves disease where the upper eyelid retracts making my right eye look a little larger than the left.

My thyroid tests are normal and a CT scan also showed nothing. When I mentioned to my ophthalmologist that I have Lyme and I think that's why this all of a sudden occurred he immediately dismissed it saying I have euthyroid graves.

I think he's wrong in that euthyroid means normal thyroid so if it's not that what's causing the problem then what?

It's even in the literature that Lyme is a rare but possible cause of upper eyelid retraction if thyroid and an orbital tumor is ruled out. So you can't give a cause but it can't be Lyme? Gotta love these docs. Does you LLMD believe it's from the Lyme?

Euthyroid Sick Syndrome is where the thyroid appears to be functioning just fine but the T3 & T4 serum levels are generally too low according to the Merck Manual: www.merckmanuals.com/professional/endocrine_and_metabolic_disorders/thyroid_disorders/euthyroid_sick_syndrome.html

"Decreased triiodothyronine (T3) levels are most common. Patients with more severe or prolonged illness also have decreased thyroxine (T4) levels. Serum reverse T3 (rT3) is increased. Patients are clinically euthyroid and do not have elevated thyroid-stimulating hormone (TSH) levels."

It also says that it can be from decreased clearance or conversion of T3 - among other things.

I hope this helps!