sych the dates of levels of low pressure and records headaches. I use this app to record my Barometric pressure headaches
Would work for arthritis conditions too. Jointfully app does this
arthritic conditions are greatly affected by barometric pressure drops, this has been scientifically demonstrated and would be very insightful to add.
it would also be useful to capture not just whether the pressure was low or high on a given day, but the delta between the highest and lowest pressures reached that day - this differential in pressure has also been shown to contribute to headaches and I’m currently tracking this data manually from Ventusky