Hello and welcome to the forum. You can sit anywhere....we're not picky!
I agree....I'd definitely get a second opinion with an MS specialist.
MS is hard enough to diagnose but add a severe head injury to the equation and it would be difficult even for the most experienced Neuro.
You don't want to start a DMD (disease modifying drug) without a sure diagnosis of MS. An MS specialist would be the next step, in my opinion.