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For years I've been occasionally experiencing something quite weird at night as I lie in bed waiting to get to sleep.

It only happens maybe 4 or 5 times a year so it doesn't bother me much, and when it happens I usually end up just getting up and making myself a drink or watching TV or something and the weird sensation stops after a short while.

If I just lie in bed though and try to ignore it it does not go away and can get a bit irritating.

I just thought this forum might be a good place to ask if anyone else has ever experienced this.

What happens is hard to explain but it happens while I am fully awake so it's not that I'm dreaming.

In my mind I start to see images of myself, or not quite see so much as feel myself and half see myself getting extremely tall, then a second later getting extremely small, then fat, then thin, then tall, and I feel like I'm morphing into all sorts of shapes and sizes.

If I don't manage to get my mind of it fairly quickly I end up almost feeling seasick because the sensation is so weird and realistic.

If I turn on the light and look around my bedroom that doesn't help either because I start to feel like not just me, but the whole room is going into weird shapes and sizes.

Before anyone asks, I don't drink or take drugs so that's not an explanation! I have no idea what causes it.

Can anyone explain this or has anyone else here had similar experiences?