Grace is acting very odd. Even for a cat. She's rolling around on the floor meowing and purring. She will come up to me, meow and then make this gutteral sound and run off.

she's not in heat, can't be that-spayed, she's just being odd.
It might be because I re-homed Earl the Pointsetta-she kept trying to eat him. (yes we name our plants-dd named Earl and Violet the Daffodil, Ds named Jimmy the Daffodil and Simmy the Ivy cutting-and Dixie the Daffodil was a joint effort

)
I gave the pointsetta to a friend who doesn't have poison plant eating cats.