Hi I am a 36 year old female and find my self always very fatigued even after good rest. Have had half my thyroid gland removed 3 yrs ago. All my blood work comes out normal ruling out anemia . Not on any thyroid pills as my hormone levels are normal. About a year and half ago started getting anxiety, heart palpitations, feeling of weakness in my legs . Doctors did all necessary tests but all results come out normal. Not taking any melds but still not feeling my normal energetic self. Due to feeling weakness in legs my driving has become extremely limited. Can't go to the mall or shopping for long. Feeling very upset because I know something is not right but doctors are saying everything ok. Please help.