Hi, this may not be helpful since there has been already been replies, but i figured since it was so similar to my experience i would add it.
i too had the deja vu, followed by tingling in my hands, face, pretty much all over. Feel like your are in a dreamlike state, You feel very focused on one thing, and its almost a good feeling. (if that makes sense) i can tell you exactly what is going on and remain concious. Afterwards, i feel kinda light headed and a little confused at times, but for the most part i feel fine. I always thought this was my imagination until i had a seizure. Afterwards I described this to my neurologist and she told me these are mini (partial seizures). very scary since i had been having them for years.
I had one grand mal seizure in nov 2006, two more September 2009. I have been on keppra since 2006. had many tests, ekg's, all came back normal. Supposedly keppra is a good med to be on (if you have to be on one) I was even able to take it (in low dosage, 250 2x's a day) during my pregnancy, without any complications. Thank God! I just took extra vitamins, folic acid and iron pills, had lots of blood work and stress tests, just to make sure everything was progressing smoothly. Luckily my son was born healthy.
Good luck, hope everything works out for you.