Soft/firm lump on far left side of abdomen just below the ribcage. This problem has been rattling me for about 2 months now since I discovered it. I'm 39, male, and at least somewhat overweight (have belly fat). The lump is something I just sort of found. It sits just below my ribcage on the left, almost on the left edge of my torso, but in just an inch or two. It's more pronounced and easier to find when standing, and more so if I stretch and draw in my abdominal muscles. Its about 2 inches or so, and kind of loosely defined. I can hold in the palm of my hand, and in the mirror, it can be seen slightly beneath the skin when standing. It feels attached to my abdominal muscle, and it's got a relaxed muscle type feel. I can't move it around, but it's soft enough to be compressed in/out. When I really try to feel it, it seems vaguely connected to something else in my body. More like a swelling area if anything else, if that makes sense. It's warm to the touch, does not pulse, and poking it doesn't seem to produce any direct pain. I also *think* I have some pain and swelling in this area, but it's of course hard for me to tell. To me, the feeling of and around the lump is a "muscular" or "colon" type nature. Occasionally I'll get some vague pain or internal itching sensation from it. Sometimes, when I try to sleep on the left side, I can feel a pressure from it. However, all of this I think is also exaggerated a bit because this is a new problem I'm trying to figure out. I've seen a doctor about this, and despite really "feeling" up my body, he was at first unable to feel any particular lump. He said my colon felt full. He then suggested we could do an ultrasound of that area. I finally got in for the ultrasound and it came back with no abnormalities, and a spleen that is "on the upper limit of normal size". The only other connections I think I can feel towards this lump are anything with my stomach, such as gas pain or indigestion, and I *think* if/when I occasionally drink the lump will be worse or feel more firm the next day. However, I can't really say for sure on the drinking, as I drink only occasionally and have noticed varying conditions on it the next day, even with a hangover. The lump doesn't appear to be going anywhere, and I could possibly live with it, but I'm trying to get a second opinion here. The other problem is the next step is CT scan, and I'm already struggling a lot here uninsured, so the CT scan may simply not be affordable for me for sometime, unless it is some sort of emergency. What is this lump likely to be?