There is no such thing as waking up at 3:30 a.m. due to a bad organ. Clinically, generally speaking, the reason for waking up at 3:30 a.m. may be the recent psychological stress, mental anxiety, endocrine disorders, etc., but can not characteristically respond to a particular organ problems, if the symptoms often occur, you need to go to the hospital neurology department to find out the cause of the problem, active treatment, do not be overly anxious, speculate on the cause of the disease. Waking up at 3:30 a.m. for a long period of time may lead to mental fatigue, poor memory, dizziness and headache, etc., and should be actively examined in the hospital, such as through the sleep test, hormone levels, etc. to identify the cause of the active treatment can be effectively relieved.