my brother is 18 months post brain injury. Most days he’s on snooze mode. When I say this I do mean he’s snoozing all day - eyes shut etc. It’s like he’s half asleep - he will respond if you talk to him. Often he can’t recall much about these snooze days. Then after 4 or 5 days he really wakes up for a day. He’s chatty, intelligent and so much more himself. Then the next day he’s asleep again for best part of a week. It’s so hard on these days. Has anyone come across such profound fatigue ? Does it improve? I can’t help thinking there’s something underlying causing this fatigue…..