The best definition I've ever heard of spiritual glossolalia is that the person spoke in one language (his native language) and the listeners heard in their native languages because of spiritual agency.
The above is not an impossible thing for God to do, but it doesn't make sense when we consider Paul's instructions to the Corinthians.
Clearly, some of the Corinthians spoke with OTHER TONGUES ( 1 Cor. 12:10 ) = LANGUAGES THEY DID NOT UNDERSTAND ... otherwise, Paul would not have had to further instruct the Corinthians on the "proper use" of the gift of speaking in OTHER TONGUES ( 1 Cor. 14.1-40 ).
The OTHER TONGUES the Corinthians spoke, must have been something DIFFERENT than Doric Greek ( assuming this was the language the Corinthians spoke among themselves in those days ). Otherwise, there would be no reason for someone to have the gift of INTERPRETATION OF OTHER TONGUES.
Any ways, it is obvious from your reply, you do not speak with other tongues. Nor, have you ever been speaking in YOUR NATIVE LANGUAGE ( English or SOME other language you know ) and the LISTENER heard their NATIVE LANGUAGE because of spiritual agency !