Cannot type, but the following is an excerpt from something I hope to post soon. I will call it "Samuel's diagnostic story" and probably post in "Introduce Yourself".
As a teenager, I had a strange experience: for 2 weeks, I
had to sleep about 23 hours per day. No other symptoms
except that possibly around that time (possibly not), I had
red streaks on ankles and swollen groin lymph. School nurse
called the red streaks blood poisoning but did nothing about
it. Did anybody else experience something like this? It
wasn't fatigue or depression. It did not have the altered
behavior of Kleine-Levin syndrome (just looked that one
up

). Just sleepiness. I do not recall any lingering
effects from the sleep period.