Hi, I'm wondering if anyone can help me with some symptoms my daughter has but I haven't a clue what they are or where they stem from. She is 2yrs old and about twice a day (sometimes more) she will suddenly freak out shaking, like she's terrified and I mean her whole body stiffens up and shakes; there is no consoling her and it's like she's being electrocuted, the way she clings to either the floor or wall. Her heartbeat gets so fast and it clearly 'winds' her as well as when she is calming down she has a coughing bout. Once it's over with, and it lasts about 30 seconds, she then continues quite happily with whatever she was doing! I'm completely baffled as these occurrences tend to come on for no reason, can wake her from a daytime nap, whilst she is playing, watching TV or sitting in the car - anytime really! I used to think they were connected with maybe a tummy-ache or something but I'm not so sure anymore and I am worried in case I should be taking her the doctors about it. I haven't as yet as it's hard to describe something or diagnose something that you can see as other than this she is perfectly fine! Has anyone else's child had this happen to them?