@bezm - Welcome to our forum! I’m not well enough versed at reading x-rays to know which of the lines in the area where your styloids “live” might be your left styloid & I don’t want to make a wrong guess. Your ENT may be able to help sort that out. You should take the scans you have of your neck to your appointment with you & you should ask for a referral for a dynamic CT scan with contrast as that will be the best diagnostic tool to start with.
If you spend a lot of time during the day looking down at a computer, try elevating the screen so it’s at eye level as this may help reduce the occurence of the type of symptoms you had the day you went to the ER.
Here are links to a couple of posts our mod @Jules wrote that will help familiarize you w/ symptoms & their causes: