Join Date: Jun 2009
Location: British Columbia
Until you can get a vet out
A ) cut the stall time to zero if you can, the absolute minimum if you can't. She needs to move, so put her in a field (or a paddock) and feed her at one end and put her water at the other, then at the very least she has to walk back and forth, she has space to move as she pleases, etc.
B ) give her feet time to heal, after a year of no-trims I hope you had an experienced farrier out. Some horses can just grow long and get trimmed back down with a little soreness, others need corrective trimming to fix any damage that might have been done. Wait and see if her feet get better.
C ) Condition her. If her feet hadn't been done in a year, chances are she hadn't been ridden correctly or at all either, it's like taking an out of shape adult and then putting them to work, you get sore in your muscles and sometimes your joints. Treat her like an out of shape horse coming back into work, take her for long walks, help her build some muscle, etc.
AND get her checked by a vet, they're the only ones who will be able to tell you what she is sound to do!