I was diagnosed 2 years ago with auto immune thyroid disorder, hyperactive thyroid, and graves' disease.
These are all relatively the same thing, but I had radioactive iodine also. I have been taking Levoxyl since then. I just developed ibs-d in the last 6 months
, but I haven't seen that my ibs and thyroid condition have had any relations so far. I have wondered
though because I don't completely have my ibs-d under control yet.
Make sure you stay on top of your thyroid levels because it can definitely effect your bowel movements
. K-9MOM is right too about what is considered "normal". Not even doctors
agree on what normal ranges are, and they have tried to have the official range changed over the last two years. Although, I don't think they have thus far. You do
need to ask for a copy of your results and keep up with it yourself. It took me a year to realize that I needed to find my 'comfort zone' on my own.
Your body may need a little higher range, whereas mine is better a little low. Good luck
with it, and if you do ever find that your thyroid correlates in any way to your ibs -Please, by all means, let us know.