How to know you have thyroid problem?

Symptoms of Thyroid problems depends on whether you have Hyperthyroidism or Hypothyroidism. If hyperthyroidism: Hot flushes,unintentional weight loss,difficulty in sleeping,increased heart rate,Anxiety,changes in menustral cycles,frequent diarrhea,bulging of eyes,reduced libido,tremors etc If Hypothyroidism:Fatigue,weight gain,mood swings,Irregular periods,nail changes,,Constipation,increased sleepiness etc 2.What is Bilirubin direct in blood test? Direct bilirubinis the conjugated bilirubin which has been conjugated with Glucoronic acid and ecreated in the bile.