Hello. My cat has an odd problem with her tail. She was fine this morning at 9 am and now she has a droopy tail. She can move it side to side. But when she came to greet me I noticed that oddly she couldn't put her tail straight in the air...it only went up halfway at the base. And the rest was droopy. She can move the tail just not straight up (how she normally walks around). Could it be sprained? I've felt all down the tail and it feels normal. She doesn't react to me touch ing it. Should I wait a few days? Should she go to the vet Now?