This is Dr. David
yes, some patients can get better from bipolar disorder
but very often it does come back later in life
sometimes a stressful situation can cause depression to return back.
sometimes good times can lead to manic episodes and too much happiness.
you should still continue to follow up with your doctors to keep an eye on your situation
if you are not having any bipolar symptoms, you may not need medications at this point.
but best to see the doctors regularly to have check ups.
let me know if you have questions.