I found the first video very interesting I have tinnitus. I do not have ringing but do have a sound like heavy swallowing between my ears. But the interesting part to me was his saying if the carotid artery is pinched you fall down. I have been having this problem since 2019, when I look to my right, the left side of my face starts to tingle and then it goes down my left arm, and then I fall, I know I am going to fall but can not stop it.

I will be doing this exercise and see if it helps, thank you for posting this.