Can u get a hernia in ur belly button? It doesn't bulge at all, nor hurt really, but kind of goes up & down when I stick my finger in & push. No pain.

YES,umbilical hernia. Yes! umbilical hernias are common (there is a natural defect from birth-from the umbilical cord). When you push on the hernia-you are 'reducing it'. When a hernia becomes painful they should be repaired (usually with a gortex patch). Most important: an 'incarcerated hernia' where the hernia remains bulged out with severe pain (due to lack of blood flow to an area or bowel intestine)--emergency!