The best way to know if you really need help no matter what your diagnosis is, is by how impaired your functioning is. If you are having difficulty concentrating, sleeping, spending, and managing your mood, then you may need help. Bipolar disorder really warrants a close examination from a qualified mental health professional. Difficulty with concentration, sleeping too little, euphoria or irritability, grandiosity, agitation or increase in activity, and impulsive engaging in pleasurable activities are symptoms of the manic stage of bipolar disorder. On the other hand, low mood, poor self worth, indecisiveness, eating too much or too little, sleeping too much, not being able to enjoy things, impaired motivation, and suicidal thoughts are symptoms of the depressive phase of bipolar disorder.

Hello
Welcome here.
Bipolar disorder has alternating phases of mania and depression
Bipolar disorder is based on diagnostic criteria laid down by ICD or DSM. The clinical features suggestive of mani episode are:
Euphoric/irritable mood,
Pressured speech,
Spending sprees and reckless behaviour,
Inflated self esteem,
Sexual promiscuity,
Racing thoughts,
Flight of ideas,
Easy distractibility,
Decreased need for sleep.

The features of depressive phase are just opposite of the manic phase.

Hope this answers your query.
Thanks