This happens just about every morning, but the sensation only lasts for about 10-30 minutes after I wake up, or until I forget about it. I'm 18, 5'9" and weigh ~140 pounds. I've been known to have breathing problems (asthma in the past, I took medication for it, then I began to have new breathing problems, they rediagnosed me as MISdiagnosed, took me off the asthma medication, and now I'm not on anything but my symptoms have decreased). Also, it doesn't seem to be a full bladder problem, as I go to the bathroom just before bed, and don't really have to go when I wake up. I generally sleep on my side, but my sleeping positions really vary (I never sleep on my stomach, though). I just thought it was some form of sleep apnea, because my mom used to say that I would breathe very slowly in my sleep. What do you all think?