What are these symptoms?

[Catiee]

I have what seems to be a growth in my lower, lower abdomen. It seems deep. During the day, I can hardly feel it, but every morning when I wake up, it's swollen or sticking out or something. By the time I'm out of bed, sometimes before, it's gone back down again. it's only the first few moments after I wake up. Although during the day, I can't feel the growth (or whatever it is) individually very well, my whole lower abdomen seems like a bulge or swollen. Moreso when I am standing than sitting. Can't feel much when laying flat. I have no pain from it. This has been going on for almost a year. Does it sound like I have cancer? Hernia?