We have two cows down this morning with weakness in the back legs. They both calved 4-6 days ago. They're on wheat - about to get moved. Would this have anything to do with it, or is it just coincidence? They've been provided a high mag. mineral supplement. We have about 120 head out there all together. They've been on the wheat for about 2 weeks. I realize this doesn't give many details, but maybe someone will recognize a red flag we're missing. Thanks in advance.