Does anybody else find that their menstrual cycle affects the dosage required?
I ask because it's taken five years to get to a point where I feel like I'm in the right ballpark with my T3 dosage. I'd been getting hideous palpitations and anxiety, and though I wanted to avoid raising my dose in case my heart finally exploded during dinner, my gut instinct suggested that I increase the dosage. I did, and lo and behold, the palpitations and fluttering stopped. Result.
For the past month or so I've been on 60mcg a day, spread out over 4 doses day and night, and I've felt relatively okay. (I also have M.E. - I'd hoped getting my thyroid balanced would make a dent in the fatigue but it hasn't, at all.)
However, I've just finished my period, and all those palpitations and fluttering are suddenly back within hours of finishing bleeding. I know about the estrogen and protein binding thing, leaving less T3 available for the body to use. So, to my mind at least, it would seem logical to increase my dosage just as I go into the joyful time that is PMT and bleeding. (Luckily, being on T3 hasn't affected my cycle at all really, still pretty regular etc etc.)
This evening I've taken an extra 10mcg and the palpitations have stopped almost immediately. (Unless it causes me a problem, I'll probably stick on 70mcg until after my next period to see if it makes any difference.)
Nonetheless, I'm really confused as to why my body would seem to be requiring more T3 at the point in my cycle where I'd expect it to need a little less.
It can't possibly be just me that's experiencing this?
Thanks in advance.