Help please

Hello Here are a list of my symptoms:
This all started 3mos ago when I was driving my car and all of a sudden it felt like I was going to faint. This has happened probably 4 times since. I get tingling feelings all through my body. even my head. Sometimes it feels like there is water on my head, and I will go to wipe it and it is dry. My mouth gets numb spots and inside my mouth also. All of this happens very random and only lasts maybe a 1 minute each time. but all through out the day. It is never a very big spot just places. LIke a place on my arm, or leg. Never my whole leg,or foot,. The doctor are saying anxiety but I just having a hard time with that. I started taking Lexapro 4 days ago, but nothing has really changed. I also get a burning feel. Kind of like peppermint feeling with cool air on it. LOL. I am going to the NEuro in 2 wks and I hope he take it seriously because it has scared me and I pretty much don't go anywhere for the fear of passing out. I have been to the ER twice for this and they did a CAT scan that came back fine. Sorry this was so long, but I am definately scared of what it could be. Any thoughts? thanks in advance. erika