If you have or think you have a warrant for your arrest in a diffrentstate , how can one find out?

You go to your local Police Station and ask. There is no other way - unless you hire an Attorney to check for you. If there is an open Warrant, you will be arrested on the spot.

And there is no way to check about warrants online or by telephone. They don't want you to know you are wanted. Yes, I know that's mean of them, but they really want to come to your home at 4AM and yell surprise. You knowing ahead of time would definitely make it very dangerous for the arresting officers, now wouldn't it?

Oh yes, don't bother trying to send someone else into the police or sheriff's station to find out as they won't be able to find out either.