I took Berdi for a ride today on our country road. I was riding her bareback but was with my aunt and mom so it was safer. I usually use the saddle if I'm alone on the road. Anyhow, we were walking and trotting and then I asked for the canter and she pretty much refused - just speeded up the trot. I got her doing a more controlled trot and asked for the canter again as I thought she was being a bit stubborn or not getting clear enough signals. This time she broke into the canter, but just as quickly broke down to the trot and slid to a stop. As she stopped she made a little jump forward (didn't buck though). Both combined threw me off balance and I slid off her neck right into the mud!! I was fine and leaped up again. I jumped on again but she seemed to be favoring her right front leg. My mom noticed it too.
I got off of her, checked her feet and couldn't see anything wrong. I hand walked her the rest of the way and she favored it the whole way. She did this right after her trim too 8 weeks ago when I tried to canter her. I didn't worry too much as I figured she was just sore after the trim. But this is strange it being sore now. She didn't seem sore when trotting but when walking I could definitely see she was favoring it.
I'm planning on talking to my farrier as all last summer she was perfectly sound being walked, trotted and cantered on the gravel and she should not be coming up lame now. I haven't really ridden her hard until now, but the few times I asked her to canter after her last trim she has refused.
The other problem is that she has been coughing - I think it may just be spring allergies or something. She does it a lot when being ridden though and today I noticed that she had this awful white discharge from her nose at the end of the walk. Is it normal for them to have this in the spring?
Any advice is much appreciated!