Hi AvengerGT, welcome to CWE!
I agree with Cint, what you describe sounds like Simple Partial seizures. I've had similar symptoms in the weeks leading up to a full-blown seizure. (They are called "partial" seizures because only a part of the brain is affected. Simple Partial seizures can be isolated, or they can be indications that a larger seizure (with full loss of consciousness) is on the way, in which case they are called Auras. Simple Partials take a wide variety of forms -- usually involving one or another kind of sensory disturbance. You can read more about them here to see if anything sounds familiar:
http://en.wikipedia.org/wiki/Simple_partial_seizure
If you haven't experienced loss if consciousness during your symptoms, and the neurologist is unable to make a diagnosis, it's unlikely that you would lose driving privileges or your license. Every state has different regulations however, so you should check with yours to be sure. Regardless, if your symptoms interfere with your ability to be an alert driver, you should consider finding alternative transportation. I know that can be an enormous burden, but you should weigh that against the risk of damage to yourself or others should an accident occur while you're driving.
While you're awaiting diagnosis, try and keep detailed notes on when you've experienced the symptoms. Track how long they last and how frequently they occur (especially if they are occurring more and more often). Look for patterns or any potential triggers. The #1 trigger is fatigue, but there could more than one, or it could be something cumulative or subtle. Other kinds of triggers: Low blood sugar, low blood pressure, dehydration, food sensitivities (MSG, aspartame, caffeine, gluten), metabolic issues (deficiencies or absorption issues), hormones (thyroid, estrogen, progesterone), illness/injury/infection, environmental triggers (flashing lights, dappled shade), and/or emotional stressors. Try and be as proactive as possible with your overall health -- avoid extremes in your diet, moderate your intake of stimulants or alcohol, and get plenty of sleep.
Best,
Nakamova