I feel the barometric change daily, down to .02 mmHg I thought I was crazy but remembered I got terrible headaches during AZ monsoons, so started collecting data on pain, then after a few months, went back and gathered the weather data. I did this in this way to avoid conditional bias. Once analyzed, I wrote a simple algorithm that warns me to take my pain meds 30 minutes prior to a drop in pressure. I highly recommend barometric apps - the one I use is Barometer Plus, where I can also integrate my algorithm/ warning . It HAS helped, as does weighted blankets, those pain pills, and pain management apps, like Curable. I, too, have a challenge flying, or even a drive up a mountain. Severity has increased since targeted monoclonal antibody infusions every 3 wks for last ten years. I dont wish meteoropathy on ANYONE.