HI!

Welcome to the Bipolar forum at PC!

I don't think "fragmentation" is the best term for what you describe , although I do understand why you might use it.
It seems like you descrbe sometimes being "single-minded" and immerse yourself in your current interest?
This may be a little "obsessive," perhaps?
A small portion of what you have shared sounds a a little like "compartmentalization."

I like where our friend Bizi was going with this. Do you have diagnosis(es)? Do you take meds? Do you participate in therapy?

When you describe your highs and lows and how they affect your everyday life, I began to wonder if you might need help with further stabilization?
we usually need mood stabilization before we can achieve any sustainable "balance."

I would like to ask you if you feel your mood is stable now? I would also like to ask you if you have someone helping to observe you and helping you to achieve a more stable state?

Although I threw out a few terms, we cannot diagnose you. We can try to support you while you and/or your therapist work on how to help you achieve stability and an optimal level of functioning.

I do hope to see you around!