We've spent a lot of time at the vet this week but things are looking up! Turns out, he apparently broke his tail ages ago and the reason for his current pain was that he got in a fight with another cat. He's almost back to normal now which is great to see!
Due to the vet-chaos and going to the mountain again yesterday, there' isn't much to write home about this week but I did manage to rip out tailwind once and for all! IMHO things look a bit cleaner now as well :)