Excerpt from Hypothyroid Mom - 300+ Hypothyroidism Symptoms…Yes REALLY...
"Digestion:
Constipation
Hemorrhoids
Hard stools
Loss of appetite
Food allergy
Food sensitivity
Alcohol intolerance
Irritable Bowel Syndrome (IBS)
Lactose intolerance
Celiac Disease
Gluten Sensitivity/Intolerance
Colitis
Abdominal distention
Weight gain in abdominal area
Protruding abdomen in children
Diverticulosis
Excess gas
Flatulence
Nausea
Ulcers
Acid Reflux
Excessive belching
GERD (Gastroesophageal Reflux Disease)"
I'm not sure, but AIP might be "Autoimmune Protocol"...
Have you been tested for celiac? That would be the first thing to check out... Celiac is another autoimmune and once a person has one autoimmune, the chances of getting another are much greater.
Soy is a goitrogen and many of us eliminate it from our diet for that reason.
Just being hypothyroid won't cause you to be more sensitive to food, but some people tend to be more sensitive than others. Once you find a food that you're sensitive to, by all means, avoid it...
Have you tried adding grains like quinoa, amaranth, etc? They're supposed to be more hypoallergenic... What about brown rice in place of white? I haven't eaten white rice in quite a few years. Neither do I eat canola or palm oils. My oils of choice are olive or coconut, but I'll use peanut in some instances. Coconut oil is supposed to have very healing properties.