Eating makes me nauseous and dizzy and eating hurts. I'm so tired of this

19 female 5'7 formerly 155 lbs now 115 (unintentional loss) conditions: pots, medications: none, substances: smoked weed like twice in my life, alcohol but this problem predates alcohol yse it's been almost two yrs of EVERY FOOD OR LIQUID making me nauseous after 2-3 bites, after 2-4 hrs my abdomen hurts genuinely worse than period cramps and mine r always incapacitating. I've tried no milk diet no gluten diet liquid only diet I've tried no alcohol I've tried EVERYTHING. I've tried Omeprazole which made shit worse. spinach? tomatoes? LITERAL WATER. all do this. water less painful but still hurts I've had pots since I was 13. this has been going on for almost two years. Blood tests done: everything is completely normal do I go to urgent care or something because my doctor refuses to give me a referral?