You could be in a state of intersection with another plane where these entities are dwelling and you could be picking up on their energy. Or they could be attempting to infiltrate our plane by using you and your energy as a sort of open door and trying to slip in.
In all cases where you're experiencing negative energy whether it is conscious negative energy with some sort of nefarious intent or whether it is just bad energy with no consciousness, you want to dispel it by raising your vibration to a state of love, joy, compassion and/or gratitude. They hate that.
