I'm a 25 yr old male. In the middle of my upper abdomen, I can feel a hard lump under my skin. Its about 6-7 in. above my belly button and about 2-3 in. below my chest. I'm not sure if its a lump or bone. If I'm sitting down, I feel nothing and nothing feels out of place. If I'm standing up, I can kind of feel the lump and nothing feels out of place. If my laying on my back, I can feel it. My energy levels have been normal. My appetite is still nowhere near what it was before. I'm getting it checked out soon, but I'm reaching out to see if anyone has an idea. Other info: No blood. I've been pretty gassy.