Well, I don't know the answer to this one. How many cartridges a day are you using? I believe the Juul uses nic salts at a pretty high potency, so you could've been getting nic overload, as nic salts are pretty potent, nausea from nic overload can lead to puking.
That said, drastic *decreases* can also lead to nausea as well.... How long ago did you lose your juul and when did you puke? You may have gone to
pretty high nic depending on your smoking and vape habits, which caused nausea, then abruptly ceasing it, leading to nicotine withdrawal, and stopping the nicotine.
I'd suggest heading direct (at this point) to your local (if you have one) vape shop, and finding something inexpensive that you like that's fairly small (you can get something that looks fairly similar to a cigarette, though it *will* have a fire button, most likely, which is easy to use almost immediately, and buying nicotine in various strengths, depending on your smoking habits (what were they) you may be able to go as low as 12 mg on a small, low wattage battery, or as high as 24 or even higher *if you need it*. You can experiment with nic strength, PG/VG ratios, etc., and maybe buy some 0 nic in both pure PG and VG, so that you can mix, to find your optimum flavor, strength. If you are doing it this way, it should be fairly easy as you don't have to be insanely accurate... Let's say you want more PG, you can just fill most of the tank with a premixed juice, then top it off with some PG to adjust your ratio, though if you want to get all technical about it, there are juice calculators....
I recommend this as you should be able to figure out the reason for the throwing up, and either way, you're going to end up with a better, less expensive product than the Juul, (OMG the cost of those cartridges) and b) most nicotine in e-juice is *not* nic salts, which more accurately mimics the action of a cigarette (sharp increase in nic, then fast drop off, leading to want to vape again) which may not be what you want/need at this point, if you are O/Ding yourself on the nicotine, potentially.
That said, you are going to have to do some experimenting and research, I'm sure more folks will come along. Since you take a medication that causes nausea, I might invest in including my doctor in this discussion.... Some meds are metabolized along *tobacco* pathways, which are *quite different* than nicotine alone pathways... You may need to reduce your med, depending on what it is, and what pathways it uses, since technically you aren't *smoking* anymore you are vaping. A lot of docs are like, "Yeah, yeah, you are still using nicotine, it's not different," but actually, it IS quite different, and you may need to reduce your med if you are becoming tobacco free, to avoid more potent side effects.
Okay, that's about all I can think of
Good luck, don't buy another Juul. I was saved from them by the fact that all stores in my area were out of stock... I'm glad I didn't experience it. Those suckers have a LOT of potent nicotine, they aren't to play around with.
Anna