[AcGold]

Degree in psychology, not saying I can diagnose but I can give some helpful advice.

Sleeping patterns?
Diet?
Exercise?
Family history of mental illness?
Working conditions?
Medications?
Any extenuating overarching stresses?

See a behavioral psychologist is my advice. Try to avoid pharmaceuticals unless absolutely necessary as they are often hard to get off of and can cause neuroplastic changes in brain structure. Good luck my friend, take this seriously. It's not something to be ashamed of.

My guess is malfunctioning serotonin and or dopamine neurotransmitter regulation. Your brain overloads you with dopamine and serotonin then becomes depleted. I recommend mucuna to help during the lows (helps with neurotransmitter generation). Do you take drugs or drink a lot of caffeine/stimulants? Overexcess of stimulants can lead to bipolar like symptoms when neurotransmitters are depleted.