Clearing Deep Fear

Being present in each moment has enhanced my life and sense of peace dramatically, beyond words even. However, recently i have begun to notice an unshakable sense of fear arising as presence deepens. This fear feels more like an addiction to thinking, it’s as if i would cease to exist if i stopped. I’ve tried to just observe this feeling but it feels sticky and have noticed it creates an intense pain around my heart chakra. i find myself being identified with this emotion frequently and sometimes the pain grows. Is this a common fear many people face in spirituality? and if so, how can one use this fear to find truth