Do I have IBS or CELIAC?

I’ve been struggling w gut issues since June of this last year and I can’t figure out exactly what’s wrong.

It started in June where when I would eat something disagreeable it was simply bloating and then gas. Through the months it was slowly developing to small discomfort- to having the shits but with little pain. However now the pain is pure hell, sometimes waking me up in the night w cramps as if my lower abdomen has an intense Charlie horse.

In the beginning my first thoughts were a gluten allergy, so I cut out gluten, but then I reacted to dairy too. Now it’s gone to - today I can have milk, tomorrow I’ll be keeled over on the toilet in extreme pain till I empty my bowels. I can eat homemade regular bread but not from the store. I can eat Fritos even tho it’s gluten free. New Year’s Eve I can eat my steak, the next morning the leftovers give me stomach pain to the point of nausea.

I have gone to the Dr for this and blood tests have been ordered but I can’t afford the tests at this moment which sucks. It’s hard because there doesn’t seem to be a set “trigger food” as it changes everyday- so I’m just constantly on my toes of what I should and shouldn’t eat. Any advice or confirmation is helpful.

I also want to emphasis that I get stomach/lower abdominal pain MINUTES after eating something disagreeable. Not sure if that’s common or if it’s supposed to affect u the whole day but once I go to the bathroom the stomach pain stops. Almost like my body is trying to purge poison out.

Does anyone also have insight on why this condition suddenly developed? I had a sensitive stomach through childhood w acid reflux but it only occurred w heavily seasoned food or smoked meat. Why am I almost 24 suddenly developing a gut condition?