<s>[INST] been feeling very tired , emotionally up and down for the past six or eight months, happy worn out crabby then back and forth, very snappy, i get enough sleep but am always just so unbalanced. was low on iron taking iron cell count was down what could this be? [/INST] HiThanks for posting your query. Iron deficiency can cause anemia which can lead to excess tiredness fatigue. But changes in emotional feelings is not due to iron deficiency.      You either have a problem in thyroid or you are having depression issues.     So get tested for thyroid diaease and if its normal take a psychiatrist consult.     Any clarification feel free to ask . </s>