i usually feel dizzy in the mornin or wen i stand up too soon then i hve to sit back down i once got dizzy and hot on the train and everything went black, i just heard pple from far away asking if i was fyn and the train sttendent hovering over me , asking if she should call an ambulance it was really embarrassing and i kept telling them to give me a minute it will pass it did waz on cambridge diet then.