welcome! low carb and fats should definitely help with your tummy among other things. make some homemade bone broths and drink daily. the gelatin is very healing to the gut. try some kelp (small doses) for awhile to see if this helps your thyroid. coconut oil is also useful. i wish you wonderful health on your journey! i used to have terrible stomach issues before going low carb so i know where ya comin' from. keep the faith;-)
p.s. if consuming any dairy, STOP!!!! my reflux symptoms vanished a few weeks after i gave it up.
Red meat is not bad for you. Now blue-green meat, that's bad for you! ~Tommy Smothers