My daughter has always been quite difficult, she is very bright and always needs stimulating, staying in for a day is not an option. The worry i have is i have always thought that she has just had tantrums for a very long time and i was doing something wrong, but something happened during the summer that made me think there was more to it. We were on the beach and a seagull pooed on her, she was under a towel so it didnt touch her, the car was parked just behind us, she got up, cried, screamed, shouted....by which point i had run out of patience and got into the car and refused to get out again until....again screaming told me she neede the toilet, ran to the toilets where she was sick and had diarrheoa-only after this did she calm down, but still remained in the car for the rest of the day. Since then, she has joined the school choir and before each performance seems to behave badly and have upset tummy, also changes in routine cause the same problems. Should i be seeing a doctor about it or i am over-reacting???