"thirsty after waking up"

Waking Up with a Parched Mouth? Suspect Sleep Apnea

Have you ever experienced the feeling of your throat burning dry the moment you open your eyes in the morning? Rather than simply brushing it off as not drinking enough water, this may be an important signal your body is sending. If your mouth feels completely parched when you wake up and you snored heavily throughout the night, you should consider how hard your body struggled while you were asleep.