The entorolab testing is a good option but like you it was not in my price range.
I have managed to confirm my intollerances via the elimination diet (and this is still an ongoing process)
within 5 months of MC diagnosis, lots of wisdom and advice from the wonderful people on this site and reading previous threads using the search function, using the eliminiation diet i confirmed Gluten, Yeast, Dairy and Soy were not my friends.
I have confirmed which vegetables i can and can not tolerate. i am following a eating plan similar to Paleo which is well cooked plain type meals.
it takes time and patience and tenacity, there is no short cut or easy way (sorry)
I can assure you the effort and energy i have put in 'has given me my life back' slightly different to before but 100 times better than spending days on the toilet and way way better than years of mysterious symptoms and issues.
take a deep breath - it will get better

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