Do you find yourself flaring up if you’re too inactive?

I think I've read somewhere that inactivity can cause flare ups but can't remember where, but I personally seem to notice that when I don't do much at all like staying in the house all day just watching TV for a couple days, my symptoms get worse.

I exercise regularly (6 days a week) but had yesterday as my rest day and haven't been outside all weekend cooped up in a small apartment, and today I'm feeling nauseous and just had heart palpitations while doing incredibly low intensity exercise. I'm thinking I'm feeling worse due to not moving around enough. Not sure if it's something to do with circulation due to lack of movement? I know hEDS and dysautonomia can be connected to poor circulation too.

Do any of you guys get this? If you rest "too much" you flare up?