Is the pain that I have in my right shoulder related to my appendectomy?

I got my appendix removed about 24 hours ago, after being diagnosed with the beginning stage of appendicitis. The doctor left the hospital much prior to my release, so I was unable to receive a lot of information from the ill informed nurse. Along with the abdominal pain that I expected to have, I was also bothered with an acute pain in my right shoulder since waking up the morning after the surgery. I am now having trouble sleeping because of this and the tylenol 3 that I have been prescribed has not helped much in that region. I also found a round sticker with a metal button in the middle on my shoulder upon my return home. When I took off the sticker, I was soon hit with an agonizing pain on my shoulder. Upon sticking it back on, the pain seized miraculously within a few minutes. Could this in any way be related to my surgery? If so, what are some treatment options?