Hard to say, but a goat eating lots of roughage can look very wide when the rumen is full, however bloat is a condition where they cant get rid of excess gas in the rumen and can kill. Since she's had the runs, her guts are clearly not at 100%, so id keep a close eye on her. Your vet could maybe put your mind at rest, or give you some treatment, otherwise id be thinking probiotics and keeping a very close eye on her.
all the best
Suzanne