I am currently 33 years old, I weigh 180 pounds I'm 5'2, African American female. I am currently having real bad navel pain and feeling nauseated, what could this be?

Any number of conditions, so you have to be examined. Ulcer, infection, diverticulum (Meckel's), on and on. Possibly even referred pain from somewhere else.

If you have a buldge in your skin with the pain that may be an umbilical hernia