Did you have a celiac blood test? NSAIDs are known for causing celiac like damage. I think you should get another opinion, you may very well have non-celiac villous attrophy caused by the NSAIDs.
From what I have read, NSAID use is the most common reason people are misdiagnosed with celiac. And diagnosis critera generally advises doctors to rule out NSAID use before diagnosing celiac if there is not postive blood work to back up the biopsy.
I avoid all chips and deep fried items unless I am absolutely sure they are being made in a gluten-free dedicated fryer. It's not only the ingredients you have to be concerned about, it's the surfaces and such. So if something is fried in oil that previously fried something with gluten, it's contaminated and a no no.
I lost 30 lbs within a month after going gluten free. It was all inflammation! I do not believe it was because my metabolism suddenly revved up, I believe it was water weight from the inflammation, my doctor concurs. My doc said he has had Celiac's who lost over 300 lbs after going gluten free!!! Due to the malabsorbtion caused by Celiac's, underneath I had lost bone and muscle mass and looked emaciated. It took over a year and with gradually increasing exercising, at first very very light. I have gained 5 lbs and feel must stronger. So be careful now that you have lost the weight, you may need time to build back your structure and you don't want to break anything that may be compromised.
My newborn grandson (4 months old) is on one and thriving. I have a friend with a three year old that is just learning to eat by mouth. These tubes are very common, but I have no experience with someone of her age.