Nothing much seemed to happen to Clunie's coat after she had her first season at just over 13 months. Unfortunately she got pneumonia during her first season ( January ) so that was fun!
Before she came into season she was forever licking herself and Fynn our neutered lurcher kept on trying to mount her...She also temprement wise was a mixture of being unusually crabbit and clingy..But I think it's each dog to their own. I think that every owner of a female dog would give you different signs etc to watch out for...
Good luck anyway. We are just waiting for madam to have her second season which I suspect is imminent..