I was shocked over the weekend (Sunday). It was quite a strong voltage (sparks were visible to others). I felt a little off after, but that went away after a day or so. However, 5 days later, I am still experiencing pain in my right arm. Should I see a doctor? Why is this occurring?
Sorry this happened to you but what likely happened is that you're suffering from what is known as an electrocution form of neuropathy which can be very painful.  The high voltage that struck you or contacted you has altered your peripheral nerves sensory function (like overloading a circuit that trips the breaker-- sometimes the circuit breaker protects the wires downstream....but sometimes the charge is big enough so that even if the breaker trips everything downstream still gets hit).  So, I would recommend getting to a neurologist if the pain has not disappeared by now, so they can get on top of whatever treatment they feel is indicated early rather than late otherwise the problem could be chronic and convert into something referred as chronic complex regional pain syn Chat Doctor. If you would like to ask me any other questions DIRECTLY about this subject please feel free to use the following link and pose your question