Join Date: Feb 2009
Location: Eventing Country
• Horses: 0
Your main question, as already stated, should be addressed by a veterinarian.
As for the spooking at tree's - ride her in and around tree's daily. The only way she is going to come around to understanding that the tree's aren't going to eat her, or things in the tree's, is by exposing her to them on a regular, consistant, steady, patient basis.
Find people to trail ride with, get out there and learn how to ride with a deep solid seat, and go.