hypothyroidism, after thyroid removal
"My surgeon took charge of my Synthroid medicines - big mistake - it was not until I saw an endocrinologist that I found the correct dosage and felt better.  It took 18 months to find the correct dosage.  I now take 0.2mg Mon-Fri and add 0.05mg on the weekends.  This works for me.  I had many problems before I got the right dose, and my surgeon said they were not from the Synthroid - he was wrong.  I had extreme fatigue, sleeping 10 hours per night and 1 hour in the afternoons.  I had trouble remembering things, as well as the inability to concentrate.  I was off balance and frequently missed steps and curbs while walking.  As well as often feeling like I was going to black out or faint - never did.  With the correct dose everything is much better."