Psychology Today has an informative article on bipolar disorder:

I won’t repost the whole article here, but I’ll copy over the symptoms briefly to give you a little better idea of what I commonly experience:

Signs and symptoms of a manic episode:

  • Increased energy, activity, and restlessness
  • Excessively high, overly good, euphoric mood
  • Extreme irritability
  • Racing thoughts and fast talking, jumping from one idea to another
  • Distractibility or lack of concentration
  • Lessened need for sleep
  • Increased goal-directed activity (i.e. work or school projects)
  • Unrealistic beliefs in one’s abilities and powers
  • Poor judgment
  • Spending sprees
  • A lasting period of behavior that is different from usual
  • Abuse of drugs—cocaine, alcohol, and sleep medications
  • Provocative, intrusive, or aggressive behavior
  • Denial that anything is wrong

Signs and symptoms of a depressive episode:

  • Lasting sad, anxious, or empty mood
  • Feelings of hopelessness or pessimism
  • Feelings of guilt, worthlessness, or helplessness
  • Loss of interest or pleasure in activities once enjoyed, including sex
  • Decreased energy, a feeling of fatigue or of being “slowed down”
  • Difficulty concentrating, remembering, making decisions
  • Restlessness or irritability
  • Sleeping too much, or inability to sleep
  • Change in appetite and/or unintended weight loss or gain
  • Chronic pain or other persistent physical symptoms not caused by physical illness or injury
  • Thoughts of death or suicide, or suicide attempts