<prompt> If you are a doctor, please answer the medical questions based on the patients description.Every so often i get palpatations wich im sure is obviosly the heart is this bad? also when i get these i get like a weird feeling in my neck if i stand up i feel light headed. i had a really bad one when i lived back at my mothers she called for an ambulance as she felt it and thought i was having a heart attack... been checked by doctors and hospitals since i was 13 when i had my first one im now coming up to 24 and still get them some days are worse than others... if i try to exercise they start if i do nothing the happen.. i try to exercise very light but the body dont like it and they start what can i do? havnt worked because of these for about 2-3 years now really getting borde and want a job but i know the bad ones will come back  <response>: Hello, I understand your concern and would explain that your symptoms could be related to anxiety. A possible cardiac arrhythmia cannot be excluded either. Coming to this point, I would recommend consulting with your attending physician and performing some tests to investigate the possible causes: -a resting ECG and cardiac ultrasound: - complete blood count for anemia - chest X-ray study and pulmonary function tests to exclude a lung disorder - blood electrolytes for possible imbalance - thyroid hormone levels for possible thyroid gland dysfunction. An ambulatory 24-48 hours ECG monitoring would help exclude possible cardiac arrhythmia. If all the above tests result normal, you should consider anxiety as the possible cause underlying your complaints. Hope I have answered your query. Let me know if I can assist you further. Take care Chat Doctor. 