Oooo sounds as though she could be getting close - mushy poos, tail position, stretching, udder not changing - close watching from now on I think!!
Cant remember, but have you got her stalled separately at night or at least in her own space away from the others - never a good idea to foal a mare in with other horses if possible as either the others may interfere causing the foaling mare to get stressed, or worse still, the foal may not have time to associate itself with its dam's scent, beome confused and run away in fear from all these strange horses, followed by its anxious Momma and a line of other interested horses, which will lead to a very stressed foal and mare, plus the foal (lacking in good eyesight at this stage) may crash into or run through fences.
Of course many mares do produce happily and successfully out in fields with companions present, but this is usually where there are large paddocks and the mare can find a quiet corner to foal in, well away from her friends. We have had 2 successfully foal outside during the day, but we were there as soon as the foals hit the ground. But many years ago we spotted a mare foaling in a far field and by the time we got there the foal was surrounded by it's dam plus other mares and cornered it was throwing itself against the, luckily safe, fence trying to get away. This is why we check our close to foaling mares every 20 minutes when they are outside during the day time!
