Hi Oscar,
To give you further encouragement, there is a doctor is Spain, I don’t know how close to you, who has done ES surgery for several people who have posted on this forum. He might be a good person for you to contact for a more “educated” opinion. I’m glad you’re finding some relief through physical therapy & yoga.
Here’s the link to the list that has the ES Doctors for countries other than the US
https://forum.livingwitheagle.org/t/latest-doctors-list-2017/2412
I also had tinnitus similar to what you’re describing before being diagnosed w/ ES. It did become less after surgery but then I developed Meniere’s Disease after a head injury from a bike accident so it got worse again. Oh well!! I’ve learned to live w/ it.