Again

I had to return to the vet clinic with Omo, because he suddenly had a lot of blood in his pee. He already had something similar months ago.
Some investigations later it turned out, that he has indeed a serious bladder infection, with bacteria which are resistant against the "normal" antibiotics. Obviously the vet last Thursday, when I visited the clinic because the antibiotics didn't work, came to another conclusion.
On the pro side: The spondylosis seems not to be the main cause of his peeing problems. We have an appointment tomorrow at the orthopaedics nevertheless to find a treatment for his weak legs.
His blood test is fine. There are only little deviations of the kidney values, which is normal  because of his long time pain medication.
And: The new antibiotics seem to work. Finally! Within a couple of hours he does't drip inside the house anymore and had a very good pee outside!