<s>[INST] Hi I m a 36 yr old pregnant woman suffering from palpitations in various forms such as skipped beats, racing heart, fluttering and pounding all while rest. I get short of breath sometimes too, even when simply getting out of bed, going to bathroom then getting back in. My gp listened to my heart briefly but not thorough enough and Inhad ecg but nothing showed up. I felt a flutter while on ecg and while she was listening but she didn t hear it. should I insist on a second opinion with a more thorough exam? I feel symptoms every day throughout the day and had them before pregnancy [/INST] Hello! Thank you for asking on Chat Doctor! I read your question carefully and would like to explain that your symptoms may also be caused by anxiety, but a cardiac arrhythmia can not be excluded. I would recommend consulting with your GP and performing a routine blood test, thyroid hormone levels, blood electrolytes, kidney and liver function tests, to exclude other possible causes of your symptomatology. An ambulatory 24 hours ECG monitoring is necessary to exclude a possible cardiac arrhythmia. Hope to have been of help! Best wishes,  </s>