weird feeling when laying down

[james1321]

for a couple of nights now when i lay down i get a feeling like i cant breath and when i sit back up it goes. i think i have had this in the past a few times and i worried then aswell i have no idea what it could be its pretty scary and frustrating. i notice it when i lay on the sofa but when i go up to bed i dont get it well not that i can remember its really odd.
anyone else get this?
cheers