This sounds silly, but today I was being given a piggy back ride and she was running very fast, when she abruptly stopped the centre of my chest right where my heart is and surrounding area was hit against her head pretty hard, I immediately felt a tightening and my heart beat became irregular, it hurt to move for a minute or so until I got up and brushed it off eventually after the pain subsided, that was maybe 11 hours ago now and as I have tried to settle down I am starting to experience a pain in my chest and shortness of breath and it is making me feel only how I can describe as strange, uncomfortable and somewhat frightened. what is this and should I be worried?
Thanks for your question on Chat Doctor. I can understand your situation and problem. You are having blunt chest trauma. And your symptoms are due to this only. Following are the possible complications of blunt chest trauma that can lead to chest pain, palpitations and breathing difficulty. 1.  Rib fracture 2.  Pneumothorax 3. Pulmonary contusions. 4. Cardiac damage 5. Musculoskeletal injury. So get done ECG and 2d echo to rule out these complications. If both are normal then you are mostly having musculoskeletal pain. So avoid heavyweight lifting and strenuous exercise. Avoid bad postures in sleep and painful movements. Start painkiller and muscle relaxant. Apply warm water pad on affected site. Don't worry, you will be alright.