My wife has a severe imbalance problem, and has to go to the bathroom frequently. Because of her balance problem, she only gets out of bed for meals and to go to the potty chair beside the bed. While in bed, she insists on laying on her back, with a pretty small pillow. Lately she has been experiencing what she describes as "choking." I try to get her to lay on her side; she won't do it. I try more pillows, to be in a more of a sitting position; she won't do it. She probably is getting some phlegm in her throat, but she doesn't seem to be able to clear it. Instead, she calls me or wakes me up to go to the potty, where instead of "going" she sips some Gatorade. She is probably experiencing some early dementia problems. Is this "choking" something that is common? Any suggestions on what might help?