I’m sorry your daughter and you are suffering. I’m a parent. I understand what you must be going through. But your daughter is not possessed by demons or evil spirits. She doesn’t have a spell cast on her by a witch or a warlock. No witch doctor can do anything for you.
You seem like a smart woman, please don’t let superstition overrule your good judgement and rationality. You have a healthy, beautiful child. Children often experience things like this. It’s just growing pains. She is not in the control of any dark or evil forces. What she has is very treatable and is most like transient. Don’t let fear take over you.