First of all, let me be very, very clear.
Being a fictionflicker isn’t bad. It isn’t something to be ‘worried’ you are. Its not something negative, its just another kind of identity.
Second of all, to the best of my knowledge, each ‘flicker’ lasts a while and then fades, generally replaced by the next one, being serial, rather than stacking up. If you continue to feel connected to each of these identities you’re more likely polykin,
However, if you are a fictionflciker,you’d probably keep the memories gained by each flicker, even after the connection has passed.