Some memories and thoughts are ingrained into your mind.
Seeped into your subconscious.
Its not something you have control of.
Its an insidious presense which leaves a slimy film over your reality.
Its pervasive.
Its subversive.
It does not eat away the original healthy memories.
Only seeking to perfect it into a mutated form.
A thinking parasite.
It grows with you.
It grows into you.
There is no cure but you may survive with it in co-existent if only you removed every other healthy living memories.
It can sustain you but when you attempt to start rebuilding, it will start attacking your infrastructure and weaken you even more.
You have to remain passive.
You cannot fight it.
To survive,
perhaps is to lose control.