Clicking sounds or sensations in the back of my head?

I (22f) notice a clicking noise in my ears every time I put my head down. There is also a clicking sensation I can feel in the back of my head. What might this be? For context, I am 5’1", 135 lbs, and I’m on Lamictal, Abilify, and Seroquel. I’m also dealing with a lot of stress.

It feels like tiny pops right behind my skull.