I've been having short depressive episode after what appears to be a hypomanic episode. am i bipolar?

Official Dx changes: Experts keep "fine tuning" diagnosis criteria. Shorter & longer durations of episodic are required for the official DX in the past or future. If you're in therapy, ask. If you wonder whether you are bipolar, you ought to consider talking with one to find out and to start managing it early before life becomes more complicated by it. If not, you'll have solved a problem anyway. Self-dx is risky.