Hi, I got a 20 year old bombproof mare about 1 and a half months ago and she was fine until she heard hunters shooting in the back field and now she spooks at the littlest thing, I.e. Someone clapped hands while she was eating and she bolted, etc; a ball thrown behind her caused her to bolt, etc. I am now not spending as much time with her as I am scared she will hurt me when she bolts. I am not an experienced horse person so I cannot train myself. Please help. Note: I was very comfortable with her before this started happening.