i should know if something sounds different. So I dont know what to do now. It bothers me.
Yes, I believe we all know when something is different with our own bikes.
I know you say the tire is fine, but just for chit and giggles run your hand over it and see if it feels bumpy/wavy.
I thought my tire was fine and at 14,000 miles I ran my hand over it.....cupped. HD replaced it.
If you have a jack raise the bike up and do a visual check and make sure nothing is loose.
Dealers are funny that way, everything to them is normal unless you had to push your bike in. Then they would tell you "Everyone has to do that once in a while", and of course they push the start button after you pushed it a mile and the bike fires right up................seems fine to me.. thanks for stopping by.

No....that isn't something that happened to me. Certainly wouldn't put that past any dealer.
Just my 2 cents