I agree with you on the sleep docs, CPAP is the cure all to them, and if you don't respond to it, they are lost. And good luck getting others to understand, unless you've experienced what we have, others don't get how truly debilitating sleep dep is.
Trying drug after drug does make one feel like a guinea pig. Not a single one that allows me to sleep through the night provides me with the feeling of being refreshed. Current theory is RLS, racing thoughts, bit of depression, combined with very very mild sleep apnea (which is a side effect of weight gain from lack of sleep) Starting another experimentation with gabapentin again, higher dosage this go around.