Bea's first season was at 10 months, all girls are different, Bea was off her food, drank more, slept more and was a little grumpy, understandably as her season was 6 weeks!.
Tuesday was the start of her second ( and last ) season, a couple of days before she laid flat on our kitchen floor as if to cool her belly, we gave her half her usual food as she wasn't interested and she still left some ,thankfully Friday she ate all her food and is now back to full food.
welsh cocker, I kept checking Bea from 6 months as you never know when it will happen, best to be sure as you don't want any accidents while out and about.