Hello I'm 20 years of age and I have been experiencing a sharp pain on the right side of my belly button about 2 inches beside it in my stomach and the pain gets worse when I cough of breathe in deep, it started about 3 days ago with a drainage from my belly button with a bad smell, I didn't notice the drainage until it was dried up all over it when I woke up the other morning, I also had an appendectomy about 3 years ago, I don't know if it has anything to do with that but if really like to know why this has been happening lately!