I have been having a very hard noticable fluttering in the center of my chest at least 10 times per day. It used to be once in awhile but now it is alot. It happens whether I am sitting ir standing and it is starting to concern me. Could this be a serious problem/
Thanks for your question on Chat Doctor. I can understand your concern. Fluttering sensations in chest are mostly due to arrhythmia (rhythm disturbances in heart). If untreated, arrhythmia can be life-threatening. So we should first rule out arrhythmia in your case. So consult cardiologist and get done 1. ECG 2. 2d echo 3. Holder monitoring (24 hours continuous recording of ECG). You may need anti arrhythmia Chat Doctor.  If these reports are normal then no need to worry about arrhythmia or other serious heart diseases. Sometimes, stress and anxiety can also cause Fluttering sensations in chest. So avoid stress and tension, be relaxed and calm. Don't worry, you will be alright but first rule out arrhythmia. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.