Cathy brings her 6 month old son Kevin to the health visitor as she is concerned he is having spasms multiple times a day. She has noticed his body will stiffen over 5 seconds and describes a sudden bending forwards of his body and limbs like he is hugging himself. This can happen in clusters several times a day and usually occurs just after he has woken up or before he falls asleep.
Based on the history alone, what is the most likely diagnosis?
