Not yet. I need to though because I lost another one since I talked to them. Well maybe two at this rate. If I hold her to steady her she seems to be able to sleep easier. The spasms are focused more in the back then neck. even with all the bouncing around she still wants to chow down. Are the vitamin E capsules at TSC as well? I have been reading a few other threads that seem to be having similar (not exact) issues and they all are feeding Dumor Starter as well so I am going to switch them to the Flock Raiser like my other ducks.