 [ Symptoms ] i have had trouble climbing my 16 step stairs at home doctor checkups ok [ Disease ] hi hypertension drugs can cause fatigue + depression antidepressants can cause fatigue and headaches depression itself can cause feeling of fatigue i think you need psychiatric councling and asking your doctor to switch your anti depressants i suggest b active in the morning +omega 3 in the afternoon they can give you a nice energy boost supplement  good luck