I've had this since my early 20's, now early 30s, but I'm just now wondering if it's something other people experience too. Often when I'm waking up in the morning I feel seized up, literally 'stuck' in bed. It's only transient, just for those few moments when coming round. It's hard to say but I reckon the feeling normally lasts 20 - 40 seconds? It's like I can't move at all in that time and have to sort of psych myself up to attempting it, and then it takes a few seconds of trying before I can move my limbs, turn over etc, and I feel very stiff. On occasion I really feel like I'm completely seized up and I genuinely start to panic, wondering if this is it this time and I really am paralysed. It never lasts more than perhaps, 2 minutes, but it's enough to freak me out when it happens. Once I have forced myself over and moved my limbs and got up I'm ok, it's just those few terrifying moments. Do other people experience this or am I a freak?