Hello , I have been smelling a smell that can onyl be described as a battery ,,electrical, sulfur,all mixed together.I have been smelling this since about august of last year. I have been blaming this smell on m lap top. but no one else can smell it.I blamed it too on tobacco, I quit smoking 6 months ago,, and the smell is stronger than ever. I have had 2 mild seizures within the last 2 weeks, I had these as a kid , but have not had them since I was about 16.when this smell become very strong I am getting a very sharp pain in the top center of my head. the pain is a very sharp pain like an ice pick in my brain. this has been happening for a few weeks and m patience and temper is way off. I have been very easily irritated , as this is not normal either