After experiencing hypothyroid symptoms (irregularity, bloating, gas, indigestion, esp. reflux, fatigue, low body temperature) during most of April, I finally realized that I needed to increase my T3 dose by 2.5mcg (which is a small amount, but effective with T3 only treatment). I tried that small increase off and on during the past couple of months, especially after my last allergen (vanilla) contamination incident. Most celiacs react to contamination with diarrhea, not constipation, which is more indicative of hypothyroid than allergy reactions. However, I had experienced soooo many years of constipation before my hypothyroid diagnosis that I automatically think that I must have eaten the wrong food or not eaten enough of the right food or not drunk enough liquids or not exercised enough, etc., etc. I heard all that 'constipation cure' advice for so many years that I can easily forget that the only longlasting solution for me is an effective thyroid dose.
Last year I spent 8 months slowly raising my T3 dose (according to symptom appearance and resolution). So I believed I finally found my final, full effective dose, when I had no hypo symptoms for 8 months. I wanted to stay at one dose. I didn't like having to request new prescriptions with new doses, although my doctor lets me tell her how much I need.
I should stay open to the possibility that I need to increase my dose. Of course 2.5mcg is a tiny increase, but enough to notice a huge difference in my digestion, gut motility, energy level, body temperature and general attitude toward life. I don't know whether I'll stay at this dose. So I plan to ask my doc to give me a new prescription witn a 5 mcg increase, just in case I need another small dosage increase.