I have the same problem, I will at times be clearly hypo, then to depressed in the very same day, with moods swinging everyday. I am waiting for a proper daignosis as well but I have been reading about cyclothymia. It is described as a milder cousin of bipolar with mood swings shifting in the same day, but never falling into deep depression or full blown mania and sort remaining on the normal baseline with highs and lows alternating

I could be wrong, it may be a personallity disorder. But maybe you could look into it and ask your doc about it