I go into minecraft and cant interact with anything

When I go into minecraft, it opens up and works like normal for around 2 seconds, then it stops working, I cant click on anything on the menu, "Settings" "Continue", etc. And if I happen to make it into a game somehow, I cant click on anything, chests don't work. Now this isn't a crash, minecraft will still work for everyone around me. The food bar will degrade, chat will show up and continue to work. Yet I cant do anything.