Hi,
Both, hypochlorhydra and pernicious anemia are common to Hashimoto’s Thyroiditis. Although you probably already know that once your thyroid has been ablated by RAI you become hypO where everything slows down — including digestion. Also, you may want to seriously consider eliminating gluten as gluten intolerance or Celiac disease is common for a HypO person. (That is, if you want to regain any significant quality of life back.) Gastroparesis can be a symptom of Gluten Intolerance. These problems are NOT unique. Surprised? My doctor never warned either I found out by researching. ALWAYS, again, "always" check out anything you are told. It may very well SAVE your life.
Good luck,
Sherta