 [ Symptoms ] can epilepsy only occur while sleeping  my father has had about 4 episodes in about years in which he looses consciousness and become very stiffed always during the first 10 to 20 minutes after he goes to sleep he is always taken to the hospital and all tests become negative could this be a type of epilepsy [ Disease ] many times some common symptoms for a particular disease like hypothyroidism share those same symptoms with other disorders fatigue low libido and weight gain can be signs of many physical and emotional irregularities after two years of thyroid testing being within normal limits it is time to look elsewhere for answers based upon your symptoms i recommend that you seek a referral to be evaluated by an endocrinologist some common endocrinology related problems can be associated with your symptoms such as pituitary disorders graves disease and cushing is syndrome i am sure that you want to feel better therefore in this faced paced rat race of today is world please do not eliminate stress anxiety and depression as possible causes for your negative symptoms