You forget your 'W's....
Just kidding. Make sure you get at least three opinions, from docs that don't know each other.
See a doctor or even a psychiatrist. I was recently diagnosed after 10 years of being told it was "only" depression. If you have hypomania, you may not even know you're having a manic episode. A good doctor or psychiatrist can help narrow down your symptoms and provide treatment that works.
Your moods go from high to low, & vice versa, without warning