I am pretty sure its not feline acne I have googled that and gotten some pics of that. I am thinking she got stung by a scorpion(not venomous but I sure its painful). She lets me look at it and doesn't act like it bothers her. It looks like a bug bite to me its like pinkish like her lip but slightly swollenYou can only really tell when she has her belly in there air and looks at you upside down so it isn't swollen too bad. I am going to keep an eye on it until wednesday or so and then make a vet appt if it doesn't get any better. Any suggestions at what it might be in the mean time?