I need help with a spirit/demon?

Well you need to be very carefull of this spirit and stay right away from it..Most evil spirits will disguise themselfs in animal form to you. Never ever trust or follow an animal spirit..You need to rid this spirit but don't do it yourself. You need to get a proffessional to do this for you. What i would do is get some blessed sea salt water and spray yourself all over every day or whenever you detect that this spirit is near by.