Poor girl. Do you feed her any canned food? My Storm was blocked 2 times and he had to have the PU surgery but even after that he would still sometimes have UTI's and one time he even had some more struvite crystals. This was when he was on Royal Canin Urinary S/O in both dry and canned form. I know that every cat is different but since he's been on a grain free diet and eating mainly canned food mixed with some water, he's never had any more urinary issues. Some people have also used Cosequin on their cats to help strengthen the bladder. Good luck.