I’ll pray for your surgeries to go smoothly, and for the styloidectomy alone to be enough to resolve your symptoms. It was for me, I’ve been very blessed…
I don’t know anything about the pineal cyst & what symptoms that could cause, but please don’t panic if when you’ve had your surgery things don’t resolve immediately, there will be swelling which can make you feel rough. It is a strange surgery in that many people find they have ups & downs with recovery, set backs at times, and nerves particularly can take even up to a year to heal. So your face pain may well not improve for a while.
If you’ve not seen it, there’s info about surgery, ideas for what to get ready and what to expect in the Newbies Guide:
ES Information- Treatment: Surgery - Welcome / Newbies Guide to Eagle Syndrome - Living with Eagle
You’re seeing a skilled surgeon, doing that does help and lessens any chance that you’ll be worse after surgery (apart from the first couple of weeks obviously) . Sending you hugs and prayers, and please let us know how you are when you’re up to it 
