We had a troubled calf 3 days ago. 100lb angus cross heifer born in cold and wet conditions hypothermic by the time we found her due to the cow being mildly crazy. Got her dry and warm and tubed colostrum. Have had a difficult time getting fluids in her and getting her to nurse her mom. We've been keeping her in the small maternity pen so we can squeeze mom couple times a day and get the calf on the teet. She's been getting on pretty good the last day but today I let them out and the calf's hip is swollen and she's favouring that leg. Did she get stepped on it the small pen or can this be a sign of something else? Vet was here two night ago and waiting on a call back now. Thanks.