Hope your little ones are okay! Horses this tiny can be easily effected by food overdoses. At my last barn, a Belgian got out and ate a ton of food, grain, and got into some lime used for cleaning, supplements, other horses' medicines, glucosamine - ate enough that would have killed a mini or perhaps normal horse... He was fine and never took an off step because he's so big it didn't do much to his 2300 lb system. But I've had minis colic just from eating a few too many handfuls of grain they weren't used to. Hate when that happens! Best of luck to you...