Yeah, kidney pain usuallygets confused with prostate pain . Keep the oral supps spread out over the days and drink plenty of water. If you're unsure then you should get some blood work done.
Kidney pain is way different and stones or infection are usually present.
Infection
severe pain on one side of the body near the lower ribs, abdomen, back, or groin, fever, chills with shaking, and nausea and vomiting.
Kidney mass/stone
Nephrolithiasis is the presence of a hard mass (or stone) in the kidney. Kidney stones may be made up of a variety of chemicals, with the most common one being calcium. Kidney stones occur more frequently in men than women and more frequently in Caucasians than in African Americans. The more common age of occurrence is between 20-40 years of age. They are more likely to occur to a person with a family history of kidney stones, and to a person after a first occurrence. The symptoms are: sharp, "spasm like" pain in the back, side, lower abdomen or groin. Nausea and vomiting may also be present.
Kidney pain FAQ