low barometric pressure is a big trigger for me... does anyone understand the mechanics of this problem? e.g., does is affect nerves, or cardiovascular, or what?
if you have this problem, what has helped you?
Here's one possibility tied to the possibly sensitive nerves in FM/ME/CFS
But barometric pressure often drops before bad weather sets in.
This lower air pressure pushes less against the body, allowing tissues to expand -- and those expanded tissues can put pressure on the joint. "It's very microscopic and we can hardly notice, except that we have these sensations," Jamison says.
Furthermore, when people have chronic pain, sometimes
nerves can become more sensitized because of injury, inflammation, scarring, or adhesions, he says.
Nevertheless, the link between pain and weather changes remains hypothetical; research has come to mixed conclusions, Jamison says. "All the results are not very clean, meaning there are people who say that weather doesn't affect their pain."
However moving to a milder climate may not help
So it's not always helpful to believe "that whole myth of, 'Go to Arizona when you live in the Northeast and somehow your pain will be a lot better,'" Jamison says. "We know that if you ask people to rate their pain in Minnesota or Arizona or California or even Florida, there's no one area of the country where you'd say, ‘There's less pain there.'"
There are some suggestions here:
http://www.webmd.com/pain-management/features/weather_and_pain#4