My friend has a mare she got in June. She's just moved to the barn that I just moved to as well.
Anyway, the mare is in heat but apparently for the first time very edgy, acting as though it's painful to be touched. She doesn't have any other symptoms, isn't lame, off her feed or anything like that.
Its just like us women we hurt at that time to there is stuff out there to help with that I think its called moody mare or something like that she may just be one to be like that when she comes in and since this is her first heat she may not know whats going on with her body, how old is she
I do have a product for my mares, you might suggest it to her.
Its called Pre-mare. Specifically used for when they are in heat.
Its a natural Herbal medicine, my tack shop gives out pretty big sample jugs, :)