Hi CharisZamb,
Thanks for contacting the Apple Support Communities today. We understand you're having issues with songs stopping or changing automatically when running with your AirPods in, and we'd be happy to look into what's going on.
To get started, does this issue only occur while running outdoors? If so, and if you're using AirPods (1st or 2nd generation), what do you have the double-tap action set to in Settings > Bluetooth > AirPods Name > Information button? If set to Next Track or Play/Pause, try setting it to Off and see if the issue continues.
Check out this link for more details: Change the settings of your AirPods and AirPods Pro - Apple Support
Let us know the results, and we'll continue from there.
Take care!