I just watched my elderly cat in the litter box. She had two urinary infections in the past year due to kidney stones. I have her on mineral water (homemade calcium chloride and magnesium formula) for several months and I've been trying to catch a sample to check her urine ph. I haven' t seen her urinate in a while. Anyway, she seemed to struggle to get it out. Not crouching and peeing bits like when she had the infections, but upright and shaking and forcing 4 spurting streams across the litter box. The total output was about 1/4 cup. Does this sound like an infection?