I just told someone that something got on my quince. Then being me I went off and looked up 'quince' to see if it would tell me why this peculiar expression exists. Of course it didn't help.

Synonyms: it gets on my wick, it gets on my goat, it gets my goat up, and the prosaic it gets on my nerves.

Does anyone else use the quince, wick, or goat forms, or have any idea what they refer to?