Laura-CCC4
Senior Guinea Pig
Sounds like it may be pain - straining to pee, fluffed/hunched up, not eating. All seem to be common symptoms of pain. The difficulty is knowing exactly what is causing the pain - you can treat the symptom, but the cause does need seeking out too. Since a urinary infection has been a problem, I would think about talking to your vet about trying Septrin (usually a better antibiotic for UTIs) and/or checking for stones is a sensible step.
Charlie was actually diagnosed with his kidney tumour because of a urinary infection. I suspected stones due to the blood and crystals in the urine; that xray came back clear in the bladder but showed the large mass attached to his kidney. We always wondered if - and to what degree, if so - the impaired function of the kidney affected the urinary system. The vet felt it would make him more prone to these infections, though quite how I'm not entirely sure.
Charlie was actually diagnosed with his kidney tumour because of a urinary infection. I suspected stones due to the blood and crystals in the urine; that xray came back clear in the bladder but showed the large mass attached to his kidney. We always wondered if - and to what degree, if so - the impaired function of the kidney affected the urinary system. The vet felt it would make him more prone to these infections, though quite how I'm not entirely sure.