Hi. I read your story: "I need some advice. It all started at around 18 months of age. She started to have night terrors. Gradually they started to subside but her tantrums started."
On the spiritual side did you know that an unwelcome spirit could have entered your daughter. I mean this because of the sudden change of behaviour. I know a person who for years as a child i could not sleep on his back because if he did he would see a dark shadowy figure hovering over him. He woke up each time before anything happened. So he used to sleep on his side always. These days as an adult he doesn't have that problem.
If you like, take your child for prayer or deliverance prayer. See a Pastor who does this and get some advice on it.
If you don't believe in this stuff then google it.
This site complies with the HONcode standard for trustworthy health information.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.