I would say since you already have her on a great diet with restricted calcium (too much in these big kids can be disasterous on their bone growth) and it is recurring more frequently, I'd have your veterinarian take a peak at her and palpate her limbs, back, etc. to rule out any other types of growth issues - in this case, it's just better to be safe than sorry - has she been acting normal otherwise? Eating, drinking, playing, having normal bowel movements and urination?
Medical emergencies should been seen by a Veterinarian immediately.
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