hi, my wife is 45 yrs old with cardio-myopathy and a pace maker. she was admitted to the hospital with severe stomach pains, low back pain in the kidney area, not able to urinate more than 1-2 times daily. very little would come out and was hard to start a stream. last monday her primary diognosed her with (UTI) and gave her Macrobid 100 mg for 3 days. Now she was retaining water, blood in the urine, when tested blood and protien were found in the urine. when she eats anything her stomach, low back left side and right side under the arm area have severe pain.