Welcome. I do take medication, but have managed to find a balanced set of drugs that are working fantastically without any apparent side effects. I don't know of anyone that sucessfully controlls their bipolar without meds (that doesn't mean there isn't anyone), but I can say emphatically that bipolar doesn't have to control or ruin your life.
I tried to manage mi B/P without meds when i stopped taking them over 2 years ago, and a month ago I ended up in the psych ward for a week. its very tough, now im back on the right type of meds and im doing better than i have in years.