If one has gout, it could lead to kidney stones but that's not to say you will definitely get kidney stones. Gout is simply telling you that you have way too much acidity in your body and the ash from the uric acid is depositing in your joints causing pain. It is the acidity which can cause a build up of kidney stones in your kidneys.
Kidney pain can start in the bladder and around your waste but when you're getting an attack the pain is usually in the lower back area. If you think you might be feeling something and are not sure, drink an herbal tea for kidneys right away to flush away the stone or sand that may be blocking the kidneys.
Don't put salt in your water, only lemon and sip your water all day long. The water is a good preventative method for gout and kidney stones and it helps your complexion. Also try to drink your water at room temperature rather than really cold.