Having some middle right side pain, when lying down i get a occasional very sharp sting in the upper right part of my chest, lasts around 1-3 seconds,?

Chest pain: Chest pain can be a symptom of heart disease but may be may other things such as esophageal spasms, respiratory disorders (asthma, COPD, bronchitis, infections), and muscle problems to name a few. It really depends on the clinical situation and other symptoms you may be having. Pain that lasts a few seconds is not likely to be serious but you should get it evaluated by your doctor.