Think of your stomach and bladder as each being similarly inflamed. The response of each is to want to empty itself.
Think of anybody's arm being badly inflamed from sunburn. Even the simple pressure of being touched is then unbearable. Just as the pressure of water in your stomach is now unbearable to the stomach lining.
Yes, you likely have food sensitivities as we've discussed; but you are for the time being way beyond that.
You haven't eaten for 4 days now? I'm assuming you haven't been able to hold water down for days also. So tell your father to call the doctor to demand to know what they are going to do about that. "We don't know what to do, so you're on your own" is of course not a valid answer. Merely being given a PPI acid-reducer drug is not sufficient - obviously it's not enough.
The doctor then might be required to admit you to the hospital to get IV hydration fluids and very possibly IV 'parenteral nutrition'. (That doesn't mean parent, the 'para' + 'enteral' means bypassing the intestine, as the liquid food goes directly to the bloodstream.) Another name is intravenous feeding.
You, or anybody, has enough of fat stores so it's not a matter of starving after only 4 days or even 2 weeks. But electrolyte imbalances might be a significant problem, along with severe dehydration.
Another possible option, maybe BETTER for you, is to go instead to the ER and get the IV fluids there. After that, there is even such as thing as 'home total parenteral nutrition', which may or may not be an available option to you.
Or else call the doctor and ask if they think you should go to the ER after these 4 days. I don't know. This is for doctors to decide, not me and even not you. We don't know what risks you are under at this moment.
Just make 100% sure not to say anything even remotely outlandish so no one can claim that it is emotional and just all in your head. They are not your friend.
I'm worried about you, let me know how things go.
(Your blood glucose might be elevated just because you are dehydrated.)
"I will let my doctor know after the gastric emptying test tomorrow and see what he says."
Nope, should be told *before* because your situation might affect the test. Or vice versa, you throw up and then the test is over. (They put food into your stomach and then take x-rays at intervals. You probably have looked that up.) I'm guessing you're just going to see some tech tomorrow that does the test.
"Did you used to be a teacher?"
I'll have to mull why you said that :)
"i questioned whether you used to be a teacher because you're good at explaining things, more than just someone with a lot of health /medical knowledge."
Well, thank you :) It's my aim to get you to be expert on your own condition because that's the best chance you have of getting better. Understanding + relentless self observation + intelligence + motivation to experiment. That's rare, and you have the possibility of being a stupendous turnaround. You might end up giving talks one day, like TEDx.
Btw, if I say things like "you should do this and that", that isn't being imperious, it's just efficient. If I waste time saying, "well it's not my place to day but maybe you should possibly think of perhaps doing so and so...", that just wastes mental effort. I figure you know that anyway, I'm just being sure to be clear about it.
Okay, now that I have cleverly paved the way about giving talks, try this talk, which is about very successful self-observation and self-experimenting in the setting of a mystery immune condition: https://www.youtube.com/watch?v=0ka9WBEijhk
It's just 11 minutes, and it's also about how mainline establishment medicine often can't handle unusual cases. And sometimes ignores or suppresses what it can't handle.
"I’ve been super lightheaded and dizzy..."
1) Might be dehydration (low circulatory volume).
2) Or orthostatic hypotension, which is a feature of mystery conditions including Ehlers Danlos Syndrome and CFS.
We can't differentiate between the two now, but if you get well hydrated and the symptom persists, that is telling.
Btw, are you hyper flexible or inflexible? (EDS, a Connective Tissue Disorder with many mysterious other featiures)
Oh I forgot, regarding the 'what to do': in addition to pushing for checking for EoE, also get the blood test for hyper cortisolism.
cortisolemia = high blood levels
while the term cortisolism includes that but also the condition caused by high cortisol
As for allergy testing, skin prick testing on the back might be negative but you still can be positive when taking in the food. That's because MCs do not circulate as blood cells do. The ones that reside in the skin of the back might very well not have the same receptors as the MCs in the GI lining.
There is a theory (by MC doc Afrin) that the ligaments and tendons in EDS are malformed because malfunctioning MCs cause then to be made badly. A speculation.
EDS is also highly heterogenous, and if i recall correctly there are 4 subtypes. Ok, more tomorrow.