underactive thyroid
"Was treated with antidepressants and anti-psychotics for almost a year since the doctor's opinion was  that my symptoms of weight gain, lack of energy, depression and dizziness were due to psychosis. Only after a year I was given a blood test and told that I have autoimmune disease. No longer take any antidepressants or anti-psychotics, only take 12.5 mcg in the morning. Can now sleep 8 instead of 14 hours a day, feel awake during the day, have energy and willingness to do things. Definitely helped with depression and anxiety. If only the blood test was performed earlier!"