i suffered with nausea for about 7yrs, along with ibs...........it was so horrible........many times i would throw up.........i tried many things, but at best it was only slightly helpful............i didn't get any relief till i happened, on one of my many trips thru the internet, trying to find why i felt so awful all the time.........i was nauseous, bloated, had the hardest time eating, cause i always felt so full all the time.........this went on 24hrs aday..........for about 7 gawd awful yrs..........i never before had stomach issues & throwing up was something i hardly ever did in my life...........& when things were bad & i'd throw up, i couldn't eat anything after it for about 24hr.........i would end up with dry heaves & i knew how bad this was for me, to b without food, or supplements or anything what so ever...........it was one of the worst times in my life..........well, that particular trip down internet row, i happened on some medical websites & there was these old articles about hydrochloric acid (HCl)...........it was really fascinating...........then i did some more research about the things that get secreted in our stomachs, from the time we even think of eating...........that throwing up comes from too much gastrin being secreted, trying to get ur stomach to produce enough HCl for digestion.......having enough HCl, stops the gastrin over-production.........histamine is another thing, that's part of digestion..........it can get over-produced, too..........when that happens, u get allergies, skin issues & many different kinds of sinus issues.........it can make u feel miserable, also..........something that might help u, that wouldn't b hard to get, is potassium.........most vitamin stores have it & it's cheap.........comes in 99mg a pill or capsule.........get caps, they get into the stomach alot easier, especially if u r having problems with digestion.........i like potassium bi-carbonate, but u might have trouble getting that form.........take it with food or liquid........it will help the digestion alittle & the ibs-C.........it's helped my husband quite a bit.........potassium has an effect on the production of HCl, too.........i don't know exactly how it works, but it does help..........if u have C, then u have slow muscle response & the potassium will help that, also..........also, have u tried tryptophan??...........if u haven't, u might give it a try........get USP grade & take it with B2, magnesium, niacin/niacinamide, P5P & vitamin C...........u need those to b able to utilize the tryptophan.........magnesium is very good for C, too............betaine hydrochloride can b helpful, if ur stomach isn't in too bad of shape..........u can get that from vitamin stores........try taking 1 or 2 at the beginning of a meal & some more 1/2 the way thru & maybe at the end..........it's a trial & error thing.........if ur stomach is capable of making HCl, then this will help..........give it a good try.........if it doesn't help, then u need HCl & no matter what all the info says about betaine & HCl, they r not the same thing at all, tho they use the terms interchangeably.........hope u get the help u need.............