Im 21 years old, im female and had a child 3 years ago. Im 5ft2 and weigh 9stone. Ive been having a pulsing/beating/kicking sensation on my left  side under my ribcage. My friend has also felt it an she said its like mini kicks. But i had my period last month. Theres no way of me being pregnant. Im worried.
Thanks for your question on Chat Doctor. I can understand your concern. In my opinion, we should first rule out arrhythmia (rhythm disturbances in heart). Arrhythmia can cause palpitations, tachycardia, pounding heart, kicking sensations etc. So get done ECG, 2d echo and Holder monitoring (24 hours continuous recording of ECG). If all these are normal then no need to worry about major heart diseases like arrhythmia. Sometimes, stress and tension can also cause similar symptoms. So consult psychiatrist and get done counselling sessions. Try to identify stressor in your life and start working on its solution. You may need anxiolytic Chat Doctor.  Don't worry, you will be alright. Avoid stress and tension, be relaxed and calm. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.