Strange Dizziness

I just got over a cold, but for the last two weeks I have been having some strange dizzy spells.  They happen at random times and during them I have muscle weakness and have twitching in my legs as well as my hands become very shaky to the point I cant even hold a pencil.  I thought maybe it had something to do with my eating habits, but when I did a food diary none of the foods match with when I had the spells.  I recently heard that west nile virus was found in New Mexico so I did a little research on it, because I was bitten by a few mosquitoes about 2 1/2 weeks ago.   The website I saw said to look out for dead birds in the surrounding areas, and within the last 7 weeks we've found 5 dead birds outside the house.  I haven't had any fevers, but yesterday I became very nauseous.  My question is....do I have WNV or do I have something else?