That size definitely deserves professional attention. If this were to be 2mm in size, it'd be possible to dissolve. But at this size it's better to go for operation or some other professional advice. Because at that size you'd have lot of pain. And also mood swings, headache, pains from left knee upto belly. And those pains are unbearable far more painful than the pregnancy pains. Because these are unending pains till the stone passes out from the bladder. So the only option here is to approach the doctor. The size of the stone can show you that this is not even worth discussing in the forums or blog or any online source. This size requires attention and the proper medical opinion. In future when you get stone formation, stick with your diet. Also find out which type of kidney stone this is based on that you can adjust the diet.