In my case, my pdoc said the waves thing is normal.

I've seen my desk ripple like the ocean, and it's from the way I look at it. It's difficult to describe, but it's basically my eyes playing tricks on me, not a hallucination. People's eyes work in a way such that staring at something (or even being fixated on something) can cause waves and warping, but that's because of the way saccades work. Your brain wants your eyes to be moving at all times (which they almost always are), and when they're fixated too much, that's when you see the waves and warping. Your eyes and brain aren't used to being steady. So usually, that warping/waves stuff only lasts a few seconds... max.

I've also had the face thing. That's not a hallucination for me. It's an illusion.