The blank moments are really, just that, he is just 'not there' for a few moments, and you can click your fingers and wave your hands around but his eyes don't react. The night time thing is different - he will scream, but it is a very particular gargled scream, he goes rigid (he has very low tone, so is normally quite floppy), and clammy, one side of his mouth goes down, his eyes are open and bloodshot, and he takes up to 10 minutes to come out of it. He has had an eeg, which was all clear, but his paed said that might be because he hadn't had one of these episodes for a while before the eeg. It seems to us that he is choking, whether on refluxed acid, or pooled saliva, as he drools a lot, i don't know. But the fact that the side of his mouth drooped down, led the paed to think it could be a seizure, triggering a choking reaction.
The only advice we've been given is to hold him upright and vigorously tap his chest and back to encourage a swallow, we have been advised to go on a resuscitation first aid course, and if we are in any doubt ring 999.
Touch wood his reflux has improved a lot, since switching to domperidone.
It is a strange limbo, not having a diagnosis, although the geneticist is pretty sure his issues have a genetic cause. He is being tested for kleefstra syndrome at the moment, but i think it will be a long wait for the results. If these are clear, the geneticist has asked if he could be part of a longterm genetics study.