My cat Simon had a block, and diagnosed with FLUTD, struvite crystals. I could not do the xrays due to cost in addition to the cathetor surgery, and the ER vet said the likelihood of stones in his age is 20%. In the hospital, he held his pee, and his heart murmur went from a 2-3 grade to 3-4 grade. My normal vet wants a follow up in a week. I am so nervous the stress will cause another blockage, but understand that I should probably get an xray and urinalysis. What should I do? He is still edgy from the stress of the operation! Can I get a urine sample at home and bring it in? I think an xray would be peace of mind but I am only thinking of him. I would not be able to afford another block. Help.