Hi everyone,
I'm new to this (both mumsnet and pregnancy), so not sure whether I'm just being a wimp, but could do with a bit of reassurance!
I'm due to give birth in about three weeks and just getting over a cold. For the past six nights now I've had no more than 3-4 hours interrupted sleep due to a cough that won't shift. I tried all sorts of home remedies (steam, inhaling, Olbas oil, various herbal teas, onion juice [!], hot lemon and ginger....), then finally got linctus on prescription yesterday. None of it works.
I either can't get to sleep at all because of the crackle in my lungs when I lie down - it's loud enough for my OH to hear it clearly too, so not just in my imagination - (and needing to lie on side makes using an "elevated position" pretty impossible), or I do drop off, then wake up in a storm of coughing a few minutes or maybe an hour later, which won't abate for ages. Tried sleeping with radio on to drown out the lung crackles, but to no avail.
Since yesterday ahem the coughing has also made clear that I've neglected my pelvic floor exercises too... 
During the day the cough is less of a problem; what really grinds me down is the lack of sleep, as I'm a walking zombie and have a constant headache due to coughing - and I'm worried sick that I'll go into birth already exhausted. I'm desperate and in tears already, and we haven't even got our baby yet; how am I going to cope with the lack of sleep then?