To point to a different perspective, it could also be a sign that something is out of whack, especially since the room has AC. Hormones, sleep apnea, underlying infection, etc. your body could be send...
Also, a different lens besides Western might help. In Chinese medicine, this would be some type of fire, maybe heart fire. Too much yang, not enough yin. An TCM supp, some lifestyle changes, and monthly acupuncture would ease it.
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