S3 messaging issue. making the phone crawl

[Shamrocker007]

I used Google+ messenger for the first time today and now a little floating message asks me to read my text messages whenever they come in. It won't go away and just sits there on my screen. My phone is barely running right now. It's driving me nuts! I keep uninstalling the updates to the app but can't uninstall Google+. Anyone know what is going on?