Sorry didn't mean to confuse you.

original queston -

everyone here has a doctor of some kind or another...
has anyone actually found answers to why it is that we can't sustain ourselves for more than a few days at a time?

To me thats asking if anyone has found out why they are not able to go for more than a few days without problems.

My answer cut to the quick is -

yes
the answer to the question is that I have DID and Depression.

Then I added that by working in therapy and applying what I was learning in therapy, to my life outside of therapy I no longer experience problems every few days. I can now go for longer spaces of time - months and years without problems.