Sorry the news isn't the best it could've been, but as has been said, now you can put a plan together and get your girl back towards her magnificent best.... I've not been on the forum long, but you get an immediate sense of how much love, care and attention the dogs get from the various mums & dads from the posts and from that I would say I don't think Tilly could be in a better place to start on a path to being a happy girl again.
Hugs and sloppy cocker kisses
Lisa & Maggie