Hypertension directly causes renal failure. Diuretics and opiates...not nearly as likely.
Low T does not cause kidney pain. Even renal failure is usually painless.
You most likely have kidney stones or a kidney infection from a UTI.
If there is any link between hypogonadism and renal failure, it is because the low T is caused by/associated with the same health problems that caused the renal failure (obesity, hypertension, diabetes, poor nutrition/hydration, statin overuse, old age, etc).