<s>[INST] I have had 3 episodes of nearly fainting in the last 6months,very light head,nausea,high pulse feels as if my heart is going to come through my chest,short of breath at times,blood pressure actually gets high(i work in a hospital where this has happened twice now) [/INST] Thanks for your question on Chat Doctor. I can understand your concern. By your history and description, possibility of TIA (transient ischemic attack) is more in your case. It is due to momentarily stopping of blood supply to brain. It is due to embolism. And high blood pressure and pulse rate are common causes for this. So you should definitely consult cardiologist and get done 1. Blood pressure monitoring 2. ECG 3. 2d echo 4. CT scan of brain to rule out TIA. You will need cardiac supportive Chat Doctor.  </s>