For the past four or five nights, in the second week of having a cold which is now all-but gone, I have been waking every 20-30 minutes for the first few hours after I fall asleep, and then roughly about once an hour thereafter, with breathtaking raspy coughing fits. I'll wake myself coughing. I'll cough so violently, so persistently that I can feel my stomach threatening to throw-up. I will often run out of breath. I sometimes have chest pains after the fact. My heart is certainly racing. They'll last about two or three minutes of barking. I don't get any phlegm, but - and here's the weird part - it does feel like I've been coughing up my own saliva. It *feels* like my body is allowing my drool to dribble down my trachea. Now, that's absurd (you don't do that when you sleep, do you?), but that's what it feels like. And I wake coughing up the lung it dribbled into. Sleep deprivation is a consequence. I'm now scared to sleep.
Yes, visiting a doctor is the best course, but my local clinic is booked out solidly. (I apparently live in a third-world country.) Any indications as to the cause of my woes warmly welcomed.