As I'm sure you are aware, different juices can affect you differently. Even juices from the same vendor can do that. I bought a disposable from a vendor and really liked it. I bought an EVOD tank and ego battery with that same liquid. I took 2-3 puffs and had a horrible headache for days. A month or so later, i wanted to see if that juice was the cause. After vaping a different juice for a month, i tried the headache vape... got the same headache again. I trashed the juice immediately. I have tried other juices from other vendors and have not had the same issue. Right now, I only vape one juice.
Maybe you should try a flavorless 100% VG or 100% PG (whatever did not aggravate your issues) liquid nic. It could be the flavoring giving you the issues. Obviously, your body likes nicotine. Grab a small 100% VG or 100% PG flavorless liquid and try that.
or not... YMMV