You're not wasting anyone's time by getting your symptoms checked out and, if it's not serious, your mind will be put at rest. But if it is a condition such as kidney or bladder cancer, early diagnosis makes it easier to treat. Seeing your doctor could save your life.
Having symptoms doesn't mean it's cancer.
Some symptoms may be caused by an infection or kidney or bladder stones, all of which may need treatment. But don't try to diagnose yourself. Go and see your doctor now to find out for sure.