Does untreated pain "spread" to other areas in the body?

I have daily abdominal pain that I mostly just cope with. I don’t like taking any medication and I have never liked the idea of taking pain medication regularly, let alone daily.

I notice that sometimes when it gets bad or worse than usual, I start to hurt everywhere else, too. My joints, muscles, I usually get a headache and a backache. Is that common if pain is untreated? Not specifically abdominal pain, but with any type of pain, for example if someone has a bad headache and doesn’t take anything for it.

I’m not asking for medical advice or a diagnosis, I was just thinking about it and it got me curious.