I can feel a vein(or artery?) when I lean my neck over?

I have been stressed recently, and when I lean over I can feel a thicker vein or artery under my ear. That ear always has tinnitus. I was told it's normal and fine but I wanted another opinion
I can only feel it when my skin is a certain way
Like when it's scrunched up and when my hand is pressed up against my face near my ear and it's not like that on the other side