June labs

I have been feeling irritable and achy and having heart palpitations, so I increased PTU from 50 mg. daily to 75 mg (50 in AM and 25 in PM) daily, asked for labs this month.

After a week on the increased dosage, I feel better, although the sore joints persist.

Here's the hormonal progression, with the latest figure in bold:

TSH went from below 0.05 -> 0.17 -> 3.81 -> 3.28 -> 1.87 -> 0.47

Free T4 went from 1.3 -> 0.7 -> 0.6 -> 0.7 -> 0.8 -> 0.8

Free T3 went from 5.2 to 2.5 -> 2.4 -> 2.8 -> 3.0 -> 3.2

So everything is normal, although I suspect that I was slipping into a less-than-optimal zone, based on the way I felt. The physician's advice was to continue the current PTU dosage.

While there is a wide range of "normal" TSH, most people seem to do best in the 1–2 range, and indeed, I felt best there, too.

As an aside, I'm curious to see what my TSH was historically, the times I'd had it checked in my 20s and 30s for OB checkups and other reasons. I suspect that I have tended to be hypothyroid through the years.