Hey OP, I understand what you are going through. I had the same problem last year with uncontrollable, random barfing. You might have already done this, but you considering going to a gastroenterologist? No amount of blood work, MRI's, CT's, ultrasounds, etc could find anything wrong or any reasoning as to why I was puking all the time. But as soon as I went to an intestinal doctor, they were able to find out exactly what was wrong with me. Have you heard of gastritis? It's a fairly uncommon disease but it can affect teenagers, especially if they're stressed, have anxiety, over weight, not necessarily eating healthy enough, etc. You should really consider just trying to talk to a gastro doctor, they can be so helpful when other doctors can't find out what's wrong. In the mean time I highly urge you to take Nexium (available over the counter), and starting the 14 day pill treatment. You might feel a little extra sick the first day, but you will definitely feel better once it starts to hit you. Also try avoiding any caffeine, sugary sweets, spicy foods, and gluten food products (Oh the horror, I know how awesome bread is and how it sucks to part with it). Hope you get well OP and the doctors can find out what's wrong. Best of luck!

i agree with 42. i have the same problem and this is how it was figured out. i hope you feel better soon.

I had similar issues starting middle of my Junior year in hs. i went to a gastroenterologist and a few months later was diagnosed with gastroparesis. Medications helped so i don't throw up every day now, but 2 years later and I'm still getting nauseas multiple days a week. thank God of anti nausea meds. But what I'm gathering from all this is stomachs are worthless pieces of crap that dont like to work

Definitely go see a gastroenterologist. And get a prescription for Zofran. It's the same anti-nausea med they give to chemotherapy patients. Good luck!!!

look into what's called Cyclic Vomiting Syndrome. I have similar symptoms and deal with having this condition. most docs don't know about it or how to properly treat it

I had a similar experience in middle school. I got tested for everything under the sun. Except Celiac's. Then, since we were out of options, I tried a gluten-free diet and the change was INSANE. I hardly get sick now, almost never vomit, have tons of energy, better complexion, no joint pain, etc. Maybe your doctors already tested you for that, but especially since you have a mild milk allergy (apparently, really common for Celiac's), I'd at least give it a shot.

Have you tried not eating anything with onions, raw, cooked, powdered ect? I'm allergic to onions and you perfectly described what happens when I eat anything that has any type of onion in it. It's an uncommon allergy so they don't test for it.

I'm 15 and this happened to me when I was 13 and ended mid way through 14. Turns out it was all anxiety. Try talking to your doctor to see if that's a reasonable answer for you.

Not trying to be a doctor but - as much as they tell you not to - do some intense googling. You'll definitely find others struggling with the same issue as you are. There's a thing called gastroparesis which can cause chronic vomiting and stomach pain and all other gastro problems. Echoing what everyone else has said: see a gastroenterologist. Hope you can find an answer soon OP.

I was just going to mention this. I suffered from constant nausea and vomiting for about a year when I was 15. Saw multiple doctors, and did tons of tests. Then I started getting attacks of very serious back and stomach pain to the point I didn't even want to move because it hurt so bad to do anything, felt like I was being stabbed. This is when we finally went to the ER, got a liver test done which revealed there was an issue aggravating it, then got an ultrasound that showed I had gallstones. Got it removed 2 weeks later, cleared up the nausea and vomiting entirely.