I have a large (?) squishy feeling lump above the belly button in my stomach, that protrudes when I do a sit up or similar movement.  Its not painful....is it likely just belly fat?  Its about in the center of where my abs should be........if I could see my abs.  Im not grossly over weight.....5 ft 9 in, 230 lbs.
Hello! Thank you for the query. Most likely it is umbilical hernia. Due to a small hole in the belly button, abdominal cavity organs (fat most likely) gets out under the skin and causes a bump. Such bump can give a pain but not necessarily. It should be less visible when lying down and more visible when standing and coughing. I suggest you to consult your doctor, have an ultrasound of this lump and in case of hernia consult a surgeon. Hope this will help. Regards.