What a great question!
It affects everything! During a 12 year abusive marriage I developed migraines, all the muscles in my neck, upper back and shoulders are covered with scar tissue from the constant tension an I didn't go to the bathroom for 12 years. But after the troll died-literally dropped dead at my feet-not kidding-it was poop city for weeks.
I have to listen to my body more now, because CPTSD can make you very fragile-oh, hell, they all can-so I don't force anything, anymore. If I don't feel well, I don't go out and dishes be damned. I'm takin my meds, popping a root beer and putting my feet for a good movie and a cat nap or two. And a nice ice mask from the freezer and maybe even a reeses.
If I'm good on my meds, eating well, getting enough sleep and staying hydrated I don't do things anymore like call the crisis line and tell them I'm going to blow the house up before I realize I have an electric oven.
That one cost me six days in the whopee lounge.
And I turn my sound machine on a lot. The sound of rain really relaxes me and believe it or not, helps with the hallucinations that are just part of the fun pack of CPTSD.
So yeah, if my crazy is cranked up, I feel like crap. We just have to be kinder to ourselves.
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Little Man-my one true love.