I have cut out carbohydrates, bread, pasta, rice, potatoes etc and have been much better, most of the pain and bloating is mainly under control. I do find gluten free products revolting, however, tasting like sawdust, and to add insult to injury very expensive. Eating out is a problem, though, as I have quite a small appetite now and cannot face restaurant meals, especially in an evening. It does save a fortune, though! I have also lost 2 stones.
I was diagnosed with hashi's 8 months ago and feel so much better now with my 125mg levo, change in diet and multiple vitamins and minerals (as advised by the good people on this forum) and not pushing myself too hard. I try to pace myself and not keep going until I am exhausted. I have had a couple of bouts of coughs and colds which left me feeling ill, but I have boosted my vit c etc. And hope that will do the trick. I am fortunate enough to be retired and have a very understanding family who support me fully in my regime.
Good luck with your eating plan. It can be done.