Hi there Gill (again! lol)
Epilepsy is an option. If there is a lot of jerking of the limbs then it is likely to be Grand Mal Epilepsy (I think they call is Tonic Clonic now). The inability to answer certainly fits (pardon the pun) but only if the 'seizure' was recent to him waking up. I have had many seizures in the night but by morning I am fine. If I was to have one (Say 1 hour) before waking I would probably be like your son.
Take him to the doctor and see if you can get referred to a neurologist and have some EEG's done. Thats the best way to tell. Please dont be scared... epilepsy looks a lot scarier than it actually is and there are a lot of myths flying around that scare people that just are not true! Let us know what the doctor thinks.
All the best
Hi and thank you both for your replies. I am just back from doctors and he thought it didnt sound like seizures he was having but some kind of night terrors, he said if it was epilepsy or seizures he would have no control, eg. wetting himself and not be able to get up from bed and walk. So i feel a bit more reasurred by this, he also thinks it is being caused by stress! I know this can sound strange in a 5 yr old but his daddy and myself have not long separated so he maybe is a bit insecure. So it will be TLC all the way.
It is true that during the 'episode' that your son MAY be incontinent and would not be able to walk and possibly for about 5-10 minutes after (sometimes longer in adults). Stress is a big factor in many ilnesses/disorders/diseases and the separatioin of you and your husband is probably about as stressful an event as he will have experienced thus far. Just keep an eye on him and if anything seems to change or does not seem right, then go back to the doctors.
Good Luck with that and let us know how he gets on!