Possible answer is blood pressure problems or possibly being animic make them go to the drs
Have they had brain scans? Sounds like a phychictric problem close to sleep walking. Look for anything that's around them every time it happens, a perfume, food, type of metal, etc. Seems as though the doctors are looking too deep or not deep enough. My friend also has episodes like those and can be triggered by a number of things like certain chemicals or food colourings (like an epileptic person can be triggered by lights). Look for any links you can find and research it as much as you can. The best of luck to you all
Hi
Welcome to the MedHelp forum!
In your first son's case, it sounds more like an epilepsy attack. The EEG can be normal but yet, the attack is possible. I suggest you take a video clipping of the attack for both your sons and show this to a neurologist. Often the presentation is diagnostic.
In your second son's case, it can be the stress of his brother suffering from this. Hence a psychological assessment is needed. MS can run in families and needs to be ruled out. Sleep related disorder is another possibility that should be evaluated, especially for your second son. It an also be due to pinched cervical spinal nerve. Brain injuries, tumors, transient ischemic attacks and bleed in the brain. Hypoglycemia, severe anemia and vasovagal attacks are common causes of such falls.
Please discuss all this with their treating doctor. Take care!