(Don't suppose you'd include orgasmic quiver?)
Synesthesia is multifaceted. When I was a kid I used to feel a shape in my hand whenever I felt a certain emotion. That went away in my 20's. Later as an adult I guessed it was a kind of synesthesia.
Also had 3 more complex emotions/feelings/states that were a blend of certain particular things, not always that connected. For example one was mostly a combination of memories of my grandad's past (he died before I was born), and the Ratchet and Clank level "Metropolis". Similarly, the actual feeling of these is now gone. Anyone else have something similar?
The closest I've heard to that was Brian Eno in his film talking about something similar he seemed to have growing up with the colour purple.
very interesting google results for this one lol