Here is my theory for 2 cents .When a low pressure system moves, in the fluid in the inflammation will have less pressure on the out side to keep it contained, letting the joint or ?swell up adding to the pain. Like a potato chip bag that is packaged at sea level and shipped to 6000 feet .
I am doing better since I started taking 3000mg of Tumeric a day and using a TENS unit along with CBD oil