Cherry had another run in today, she was running around and playing with another broder terrier for at least 15 mins nicely, then it was time to go so I out her on lead and it was so quick that i couldnt see who started it but the 2 dogs were really going for each other and it was a real job to seperate them. afterwards we stood for a couple of minutes chatting to the other owner (we were both a bit shook up), the dogs were fine again and licking each other and being lovely again. he said his dog was 3 and had never done that before, so it must have been something cherry did (My conclusion not what he said he was being lovely about it). Earlier on the walk she had gone near a yorkshire terrier and it growled so I was readyt for it but she just walked past.
The problem is the more it happens the more nervous I am getting whenever another dog approachs which is presumably making it worse.
It seems very random and I have no idea when it will happen, what causes it and more importantly what to do to stop it.
Cherry has been properly socialised and been to training classes for the last year, we are doing bronze and silver test on monday.
Please any help and advise welcome.