Brad,
Just wanted to drop in and say that I'm sorry to hear you are having problems.
With that said, Welcome to NeuroTalk. You came to the right place. There are plenty of good people here that can relate to your struggles and offer you their advice.
Mark mentioned you should get a blood pressure kit. You can find them in drug stores, Walmart or online...I just ordered this one online today for $20:
http://www.walmart.com/ip/Veridian-S...r-1ct/16562819
I have similar episodes like what you described. When they start coming, my speech also goes and sometimes I have trouble with my right side...I'll lose coordination in my right arm and feel some tingling. You said talking to your wife helps...this works for me sometimes...but sometimes I can't talk at all and being around people just makes it worse.
I also have trouble deciphering whether it's an anxiety attack or just symptoms of PCS. Sometimes it's hard to tell the difference.
You mentioned being afraid that it won't go away, or you won't be able to snap out of it...I've posted the same thing on here before. I struggle with this every time my symptoms flare up. For example, today, I became overstimulated while taking my son back to his mother and running a couple errands on the way back. I've had this eerie / weird / uncomfortable feeling since and when things like this happen I freak out and think I'm stuck that way. Don't feed in to it...It will pass.
Keep posting, keep us up to date. Wish you the best of luck.