Hello, I have been feeling discomfort under my right ribcage for over a year now and I have gotten somewhat used to it, but sometimes I find it bothering me. It also is not completely under my rib cage, but more like inside the lower part of my ribcage. It feels like an inward pressure and I can push it out using my muscle that gives an internal "cracking sensation." It does not do any good other than to provide split-second relief at the moment of which I press the muscles. The pressure also feels like it it is pushing upwards slightly. It does not really hurt but it can be very annoying at times. Also, I am 17. I do not know what this is and it is difficult to find any information on this condition. Can it be from sitting in a desk all day at school? I am not entirely sure whether or not this is an issue. Should I be concerned?