Just from my own experience and reading what others have said, you wouldn't be the first to have similar dreams before being treated for sleep apnea. My dreams (and others I've read) ended with therapeutic cpap treatment. You might read up on signs of sleep apnea and see if some apply to you. Until you can do more about it, it may help a little to not sleep on your back and to raise the head of your bed a few inches by placing something between the mattress and box springs to elevate the mattress. This should not delay or replace diagnosis and treatment of sleep apnea, which should be taken very seriously.