She is a doll-baby! I don't know what breed she is Vader, but if she were mine, to ease my mind, I would take her to the vet and have them draw a blood panel. I love her name, cute take on it. Bet she is handful! I would also let the vet worm her for you, as they worm according to weight. But she is a doll!
Maybe I am reading this wrong, but you're kitty is 1.5lbs? Is there a number missing there? When I got my girls at 9 weeks they were both well on their way to 3lbs, so to me 1.5lbs seems awfully tiny. They are now going on 8 months and are just hitting around 7lbs. BTW, your kitty is adorable .
other parasites like Giardia. Finn McCool had that when we got him, and we just thought he was chubby too. Our vet told us that standard worming don't neccessarily pick up on that little critter. So take a stool sample with you when you go.