I've come back to Minecraft recently, but there seems to be this bug now that's giving me headaches. Before, the camera movement was relatively smooth. When I watch youtube videos of Minecraft, it looks smooth. But when I play it on my computer, it doesn't look smooth, It's jittery. I also have a laptop and tested to see if it happens on there, which it did not. I also tried changing my mouse to see if I had a bad mouse or something, which did not fix it. Deleting Minecraft and reinstalling did not fix it, neither did reinstalling Java.

Here's a video showing what I'm talking about.