Fibromyalgia sufferers are affected by the ambient pressure especially if it goes down suddenely. If a storm approaches the pressure drops, causing the air in our joints to expand.
Barometric pressure is a measurement of the weight that is exerted by the air all around us. When its a lovely sunny day then the barometric pressure tends to be quite high.
The change in the weather can effect us all, even air conditioning units can disrupt muscle aches and pains.