My 2 and half year old seems very advanced for her age, her speech is better than most her age and she is doing so well is all areas however she seems to jump and flap her arms quite often. She's done it since a baby and I've always thought it was through excitement but now she wakes in the night and does it and makes odd noises or just talks to herself for hours at a time. No amount of telling her to stop or punishment will prevent it. Should I be concerned?