Anyone got explanations for these?

[Heywood]

2 more that are just a bit vague, when I orgasm I get a tingling sensation in my jaw.

synesthesia or something similar.

Synesthesia (also spelled synæsthesia or synaesthesia; from the Ancient Greek σύν syn, "together", and αἴσθησις aisthēsis, "sensation") is a neurological phenomenon in which stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway.[1][2][3][4] People who report such experiences are known as synesthetes.

http://en.wikipedia.org/wiki/Synesthesia