Hi, may I answer your health queries right now ? Please type your query here...My almost 3 year old little girl is very social athletic and smart. She is the middle child with an older 6 year old and younger 18 month old sisters. She is sweet and loving most of the time and very affectionate. BUT she has these tantrums every now and then that can last 30 minutes to an hour. They are very obsessive and often can only be calmed down by fixing the action. EXAMPLE: If I unhook her car seat belt and she wanted to she will melt down (uncontrollable hysterical crying and screaming) until I put her back in the car and let her undo the belt. That is great if it is something fixable, but we had a swim lesson that was the last one and they did it more free instead of structure and when we were leaving she did not feel she had her swim lesson that day so she had a melt down which lasted one hour until she fell asleep then when she woke up one hour later she continued to cry for about 10-15 more minutes then fell asleep again for a little while longer. When she woke up the final time she was OK, but I though it would go on forever since I could not recreate her swim lesson. I try to work on calming with breathing deep and blowing out bubbles or something else. I have tried deep pressure treatments. I have tried to calmly talk to her. She is not hurting herself of others, but the obsessive nature is troublesome to me. She does not seem to have an obsession with anything in particular, but she will just get fixated on arbitrary things. She does not show a lot of aggression, but will get frustrated with her younger sister at times and will squeeze her. Any help will be appreciated. Thank you.