I suffer from dizzy spells which are exacerbated by me being over warm. While having the dizzy spell my arms feel heavy & I struggle to raise them, my eyes ache & the light hurts them. I feel as though I am about to pass out & my speech is slurred. Many of these incidents happen when I am travelling by bus, car or train & most of them happen while I am sitting down. I have only actually passed out on 3 occasions yet I have at least 3 dizzy spells per day & sometimes as many as 18. I am also extremely tired all the time & very irritable. PLease can you give me an idea as to why this happening? My GP has said I am just one of these people this happens to. I also have high blood pressure which is controlled by 3 tablets & I am being monitored as my last 2 ecg s showed a rapid irregular heartbeat .