Ghost Vibrations

Hello, mitchell114.

If the issue you are experiencing was happening before you updated, it's likely unrelated to the update itself. Restarting your iPhone and keeping it updated are both excellent steps to take, so thanks for doing that.

There are a few things you can try to help track this down further:

1. How to manually update apps on your Apple device - Update all of the apps on your iPhone. It's possible that there is an issue coming from an app that could be resolved with an update. Test for the issue after that step.
2. Use notifications on your iPhone, iPad, and iPod touch - Apple Support - Consider temporarily turning off vibration-based notifications for your apps. If you have a lot of them, this may be a lengthy step. If you turn them off, then turn the notifications back on one by one, you may be able to track the culprit.
3. Get started with accessibility features on iPhone - Apple Support - Check through the available Accessibility options for your iPhone and see if you inadvertently activated anything that might be connected. There are quite a few choices that can affect the vibrations on the iPhone.

Let us know if we can help with anything else at all or if this doesn't settle your issue. Thanks and have a fabulous day!