Hi I have been suffering from dizzy spells, where I almost black out.  This happens between 2 and 10 times a day.  I also get a warm rushing feeling up the back of my neck, then my body feels really weak.  I also get palpatations where my heart feels like it is pumping out of my chest and I can feel my pulse in my head.  I then get a headache in the top/front of my head.  I am not stressed or anxious and whenever I have my blood pressure checked it is never high.  Can you advise as to what it might be
Well come to ChatDoctorThank for asking I really appreciate your concern, if this is just dizziness and not fainting or a loss of consciousness then it could be due to vestibular dysfunction, and it can be well managed with antihistamine (Linearizing) but condition has to be confirmed, if it is the loss of consciousness then it could be due to cut off blood supply to the brain that is happening because of cerebrovascular pathologies, cardiovascular disease, and for that you will have to get done the CT brain, and EKG and ECHO, beside all of these it may be orthostatic hypotension, age and gender related phenomenon (No information is given here for age and gender), hope this information helps.