Hi,I am Dr. Shanthi.E (General & Family Physician). I will be looking into your question and guiding you through the process. Please write your question below.
Why do I have spells of frequent yawning when I have had 7-8 hours of sleep? I use a nasal sleep apnea machine. The yawning spells sometime occur even in the morning after being up just a few hours. It also usually occurs when I have been sitting a while.