Memoria?

It follows me now even more and it wears a mask like a plague doctors mask and during the night it screams outside and the only words that i hear are memoria repeated in my mind. this figure seems even more threateningnthan slenderman who I see less and less each day who knows he may be protecting I remember a dream that a message was written on a wall that said "Memoria protects" maybe he is memoria or maybe I may just be loosing my grip of reality or I have another horrific creature following me.