For a few weeks iv had a random pain occur with no warning. On my right hand side, about halfway down so just below the bottom edge of your bra? What organ is there? Its been particularly bad this evening. Iv been needing to wee more often so suddenly thought maybe UTI but thats too high for kidneys isnt it? Plus its only on that side. I dont have any other symptoms, no fever etc. Dont want to hassle a gp if they are likely to say its muscular?