Cant eat, shoot my bow, or drink potions?

What I expected to happen was...:

I thought I was going to be able to eat the apple

What actually happened was...:

Pretty much I was playing a Ultra Hardcore Survival game and I tried to eat my golden apple and it didn't work. I tried to shoot my bow next, didn't work and tried to drink a potion and didn't work. It works, but its really buggy and takes at least 20 seconds to do so. It's not my mouse, already checked, I restarted minecraft, didn't work, changed my version, didn't work, Logged out of the account and logged back in, didn't work. So I'm very confused, I tried to google the problem and it seems nobody has ever had this problem before, unfortunately.

Steps to Reproduce:
1) Im not sure how to produce it. It just happened when I logged in today.