I have a fear of answering questions in class?

I am a 20 year old guy in college and I have a fear or anxiety if you may of answering questions in class.

I wasnt always like this in high school I had no problem giving presentations or answering questions or being the focal point of the class in general

but in college I feel so intimidated I tried to get over it but I cant even if I know the answer which i frequently do or have some kind of input to add to the discussion I just dont speak at all

I just cant bring myself to open my mouth how can I get over this

And now I feel that since I havent said anything in class since it started 2 months ago that it would be weird if I just suddenly started