Overtraining Syndrome, Ketone Ester Supplementation as possible ME Rx?

[Pearshaped]

I was diagnosed with overtraining syndrome at age 16.
Yes symptoms are similar but definetely not the same.I cut my trainings down to 50% but nothing has changed until I stopped completely.

Note that PwOTS are often deficient in several vitamins.
So was I.It took me 1,5yrs to recover.In retrospect i'm wondering if this was already cfs..

I have tried exogenous ketones-did not notice anything.Same with coconut oil and mct oil.