I haven't tried 100% VG test as it's really hard to find it, buy yes, it's the next step for sure. I do MTL hits, but half DL on occasion. Flavourings don't seem to make a difference except for tobacco ones, which make it a bit worse.
Don't think it's bad nic as I've tried many different batches from several different brands.
The issues started back up again. No one seems to be able to figure ou what the problem is because the reactions only happen occasionally. The first time it got bad, I had just walked out of a class I was teaching, so hadn't touched my vape for a couple of hours. A few drags, got in the car, and had that massive head pressure and dyziness. This happened at other random times and had nothing to do with the nic as it sometimes happened with only 2 drags after several hours without vaping. Not to mention my tolerance for nic is HIGH.
It's a mystery. The last test I did was the weirdest. After I felt really horrible, I put the vape aside for 2 days. Felt just fine. Then, picked it up again for very short sessions, very spaced out too. Felt ok. Then, to make sure it wasn't the nic, I filled my tank with 2ml of 0nic juice, and vapes the whole thing in 15 minutes. Nothing happened. I thought, hey! Maybe it IS the nic!! The next day I had major personal issues and got worried about Dealing with vaping/getting sick AND anxiety over other stuff at the same time. So I vaped VERY little - 2 to 3 drags every 2 or 3 hours. Felt off every time I caped, it went away 5 minutes after stopping. When I did vape, it was instant. So I decided to put the nic theory to the test once and for all and after 2 drags and not feeling that great, I emptied my tank, put the 0 nic juice back in there, and had a drag. Felt like I was going to die. Head pressure, intense light headedness and dizzyness. So, definitely not a nic issue.
My allergist didn't even test me for pg allergy as he was confident my symptoms didn't match those of an allergic reaction. I didn't vape for a month. Went to my doc, he examined me and suggested I try again, but tapering.
Vaping 1ml a day for 2,5 months I felt good for the most part. But haven't been able to do it over the last week as I feel pretty awful 2 drags in. It seems absolutely random and some people have suggested it might actually be psychosomatic, although I find it very hard to believe I'd only feel like this when vaping but not otherwise, and at random times.
Anyway, even though Max vg juices are hard to get here, I'll find some and try. It's the logical next step regardless of what my allergist thinks. I don't see how it can be anything other than a PG intolerance.