I think I have precordial catch syndrome, every now and then, I get a very sharp stabbing pain on the left side of my chest, it feels like it is my hear, it hurts when I beathe in or move, it lasts between seconds to minutes. On one occassion though it lasted for over an hour. I am 22 and otherwise physcially healthly. This has been happening for YEARS. Sometimes it just happens once and then not again for months, but other times it can happen 4 or 5 time within 20 mins.
Thanks for your question on Chat Doctor. I can understand your concern. Possibility of stress and anxiety related pain is more likely in your case. But better to rule out heart diseases because it is left sided chest pain. So get done ECG. If ECG is normal then no need to worry about heart diseases. Such kind of random chest pain is commonly seen with uncontrolled stress and anxiety. So better to 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.  So avoid stress and tension, be relaxed and calm. Don't worry, you will be alright. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.