I get 'hot & bothered' downstairs without touching anything and it takes very little to set it off at times. Feelings of warmth, tingling, and ya pleasure .. now if I don't act on it generally it'll subside. I have had them last all night however (more frequent) or all day (less frequent) basically feeling like my body is demanding attention.
I'm .. well I'm me. My experiences though seem to be far far different than anyone elses. I suspect alien influences

If it helps any I've had things reconfigured to female norms downstairs... the feelings only got stronger over the years.
If I don't act out (masturbate), after about a week or two my body will do it when I'm sleeping all by itself. Not a wet dream per say, though there is some vaginal discharge that does occur.
Not sure if that helps? Maybe it does. Who knows

But that's my experience in this regards.