What should you know about bipolar fatigue?

Fatigue may feel like heavy limbs, slowed thinking, reduced motivation, or needing more rest than usual. It can accompany low mood, but tiredness alone does not establish the cause. Reduced sleep during mania or hypomania can leave someone depleted afterward. Medicines, disrupted routines, alcohol, dehydration, anaemia, and other health conditions can also contribute. Related possibilities include [Anaemia](/conditions/anaemia/) and [Dehydration](/conditions/dehydration/).

Track sleep, mood, energy, medicines, caffeine, and alcohol for several days, and share the pattern with the clinician managing your bipolar disorder. Keep wake and sleep times regular, eat consistently, drink enough fluids, and use gentle activity when able. Do not stop or change psychiatric medicine without medical advice. A review can check whether treatment timing, sleep disruption, or another illness such as [Burnout](/conditions/burnout/) needs attention.

Arrange medical advice if fatigue is new, persistent, worsening, or interfering with work, self-care, or prescribed treatment. Seek urgent help for thoughts of self-harm, severe confusion, inability to stay awake, or rapidly escalating energy with very little sleep. Immediate assessment is also needed for chest pain, severe breathing difficulty, fainting, or signs of serious dehydration.

Could my fatigue relate to a mood episode, medicine, sleep problem, or another condition? Should we review my dose or dosing time? Which symptoms should prompt an urgent call? Would blood tests or a sleep assessment be useful?