I noticed a tiny firm pimple - like bump under my ribs to my left. Directly left of my belly button level above hip. Smaller than a pea. I tried to open it and nothing happened. This was two years ago. It went down, but never fully disappeared. Recently I have been workin three jobs, and will be insured in a couple of weeks. I am unsure what to expect when I have this unknown hard thing checked out. It got about the size of a small pea again, and has become more noticeable in daily life. It is small, but has been there too long, and is sensitive when I examine it too much, or if I scrape it against something. It never developed a head, but tthe bumpIis reddened and the skin around it is normal. Every so often i will forget it is there until i scratch an itch there.