Hi Joanne Its Now Thursday And This Is How It Looks Like Right Now does it look like its going away? I know it looks kind of red but i believe it was because she scratches around the area alotIf it only appeared last night, it could be a bite or a sting.
Lumps and bumps that hang around or get worse are always worth checking but I wouldn't worry if it only just appeared. It might go away just as fast.
Yes i have tried to send them to my vet but they just keep telling me to wait until her appointment which was supposed to be on thursday but due to inconviences they had to rescheduleI'd have hoped it would be smaller by now - maybe send the photos to your vet?