I am experiencing what you describe for the last 25 years or so...since I letf the cult, its lies and dellusion.
May I tell sincerely how I learned to deal, the best as I can with it???
1) the great dellusion:
When this happens it's very much painful, in the mind as well as in the body; we feel very worry.
But , actually this is a blessing. It's a pain that will lead to a major change of beliefs and mindset.
This is a growth crisis that we only need to acknowledge in letting the confusion and the not-knowing to arise and to be....for a though challenging moment!
It's like a fearfull deep storm; But the pain comes from resisting to let go.
It's a sort of spiritual moult and you are about to slough your old spirituel skin to grow a mature one to better move on with you journey!
2) Your new skin
Dropping the old skin makes us feel naked and vulnerable since the protection of old beliefs
Is gone, even though we may try to hold onto it in search of a sense of security.
But if we only acknowledge it with humblenes and confidence then, we will feel this special uncomfortable moment like morphing from a caterpillar to a butterfly.
3) The butterfly
When wings drie and are strong enough, there is a complete new world, out of the cocoon that is awaiting for us To be explored. A journée de Will travel dit pur best friend: YOU
We don't have a clue of what this world is made of... We will Will recognize it and will allow time to make our own discoveries instead of listening to anyone pretending to know...
Why won't we listen?
Because those pretending they know are only sticking to their beliefs...so preventing you to make your own fly and discover what this new world is made of...away of cults, any faith, any pseudo teaching, any guru...since their purpose is to comfort those who never had the courage to fly...and to wake up as you are doing!
So, be confident in you, let the Windows wide open, take deep breath, and soon you will discover that letting go and not knowing is very natural and not fearfull at all.....
Indeed, yes, you will know when you know!
Keep on going and be your own master..you already have much more wisdom than most human beings do...
Be confident, Even though there la Nothomb To know (conceptual mind) you already know all there is to know, like animals do , like nature do!
(as a side note, I find Jonathan livingston seagul moovie and soundtrack very inspiring...)
Please excuse my bad english though.