Dizziness lightheaded headache nausea past 2 weeks. cant read,write,walk,sit.no ear infection. taking b12 and iron for 2 months. ?

See a neurologist: There are many types of headaches, including migraines, cough, cluster, occipital neuralgia, muscle strain, etc. Keep a log of the timing, duration, severity, and location of your headaches. Also try to identify any headache "triggers" (stress, not sleeping/eating). Take this information to a neurologist. http://www.nlm.nih.gov/medlineplus/headache.html