Wow! There is hope!
Do you recall how long it took for him to get over it?
We lost the dummy two months ago and the issues with naps started about five weeks ago, and the separation anxiety has returned big time in the last four weeks...so she and I need the naps to occur.
The curtains are always closed, the room dark, only a few books, her drink and a couple of soft toys. We don't play music, but then we never have for sleeping. The gate is up at the door to remind her it's sleep time...
She either howls for twenty minutes and then gives up and just runs around the room talking to herself, or she wasn't tired to start with so doesn't bother crying and just goes into playing in her room...
It's nice to think that it might not be permanent, because she really still needs the nap. Come five o'clock...sigh.
Oh well - here's hoping the golden rule applies, just when you get used to something, she changes it again.