I had 3 years of 'remission' before I started into an episode with trouble sleeping and seeing and hearing things, which was clamped down by an increase in my AP. The difference with you, is that I stayed on my meds all that time.

My old pdoc, when I lived in California and was treated at the Bipolar Clinic at Stanford, told me that she had 'plenty' of patients who had gone some 10 years without an episode. Though, as she didn't mention otherwise, I assume they were on meds.

My go-to is always to say to stay on meds, but if you've been doing well for so long, maybe they aren't necessary for you, or not for the moment.

So remission can happen and I hope you enjoy it!