I feel a slight pressure just below ribs, its more apparent during the week when I work at a desk. I'm tall so I tend to have bad posture. I also sometimes get sharp but not hugely painful 'pains' inbetween a couple of my ribs, both sides occasionally. I tried to book an appointment with doctor, but the next one available is in 3 weeks - just wondered if I should be worried? I'm 25, healthy diet, walk 4-5 miles a day. Many thanks. Callum