Non illness related ME?

I’m hoping to hear people’s experiences developing ME that wasn’t related to an illness.

I can’t pinpoint when my symptoms started, but I had a lot of traumatic situations back to back in high school and symptoms began getting bad in college. I’ve always been a tired person and then I had an eating disorder so I’m not sure how much of my symptoms before were ME or unrelated reasons.

I have Ehlers danlos syndrome which also got worse during college, so EDS related experiences also appreciated.

The sudden onset is the only thing that doesn’t match up for me ME wise