question: IAM HAVING MOOD DISORDERS FOR PAST TWO MONTHS .MY VITAMIN B12 IS 140 BELOW NORMAL AND MY TSH LEVEL WAS 6 BEFORE TWO MONTHS BUT IT CAME BACK TO NORMAL WHEN I STARTED TAKING THYROXINE 25MCG.THEN IN BETWEEN I STOPPED TAKING THROXINE BUT THEN ALSO IAM HAVING MOOD SWINGS AND SLEEP DISORDERS. I AM HAVING NEGATIVE THOUGHTS THROUGH OUT THE DAY AND IAM FEELING UNEASY. THIS IS DUE TO WHAT? LOW B12 OR HYPOTHYROID ?SHALL I CONSULT PSYCHIATRICT ? SO PLEASE HELP ME TO COME OUT OF THIS.I AM ALSO DOING WALKING AND YOGA REGULARLY.