I’m sorry your symptoms are getting worse. It’s most likely the angle your left styloid is growing, how thick it is or both, that are causing it to be more symptomatic. I know how miserable that is!
Making an appointment w/ Dr. Endres just to meet him & talk about his surgical approach would be a good starting point. It doesn’t commit you to having him do your surgery.
Here’s a link to a post @Jules wrote that has lots of information, including a list of questions to ask a prospective surgeon (it’s toward the end of the post), which may be helpful for you:
To encourage you, we’ve had other members with your type of symptoms, & they did go away once the styloids were cut shorter.
I had the opposite of your situation. My left styloid was longer & angled inward, & most of my symptoms were on the left. My right styloid was a bit shorter but was thicker & growing nearly straight down but wasn’t as symptomatic.
Please let us know what you decide about staying close to home or traveling for surgery. I know it’s a tough decision.