@Violeta -
Pressure and humidity - yes, I think they both plat a major part in dysautonomia, M.E., PoTS, and many other health conditions. I was just unaware of how little the change in pressure actually is that can cause symptoms flairs.
Yesterday was sunny and clear. The pressure was 30% (which is pretty high for us) and humidity was 58%. Today the pressure is 29.89 and dropping, and the humidity is 95% with heavy storms and rain moving in later. I have far more grog, mental fog, full body aches and pains, and oppressed lung function today.
I often wonder how my system would do in a sunnier, arid climate like the mid-west rather than damp, cloudy New England. For instance, in Taos NM the pressure today is 30.38 and it looks like their normal pressure spans 30.25 to 30.50. And their humidity of course is always very low.
I also agree about negative ions. Luckily I live in a place usually dominated by them.
-on a mountain
-surrounded by forest
-many pines
-running streams through the property
-usually breezy and windy
-lots of house plants
Interestingly, I normally feel more energy during lightning storms. Then again, most cloud to ground lightning is negatively charged. Of course, rain creates negative ions as well, but many times when it is raining I feel drained. So, I think it has something to do with the combinations of low pressure, high humidity, and the ion overload.