I have a iphone 7 plus. The first day my notifications would make my watch vibrate and pop up on my watch. Now it doesn't seem to do that. I tried restarting my phone and refreshing the app. I also powered off the watch and turned it back on. I ensured the notifications were on, on the app. I also had it on for exercising and sleep on my watch. Any suggestions? Did I turn something off in inadvertently?