Hello SpiceBoy76,
Thanks for posting in Apple Support Communities!
We understand that you're not receiving notifications on your Apple Watch after updating your iPhone. We'd like to help.
Have you updated the watchOS on your Apple Watch as well? If not, make sure to Update your Apple Watch.
Here's some information on Notifications on your Apple Watch. Have you tried everything under the "Manage notifications" section?
Take a look at the section under "If you don't see notifications on your Apple Watch" in that resource as well.
Have a nice day!