Well even if these creatures existed as spiritual forms, spirits cannot stop you from breathing.
We may be able to communicate with spirits, but they are not physical beings. Though some beliefs differ, they are essentially residual energy, left over from a person when they pass. They may be able to attempt to touch you, and very sensitive people may even feel this touch. But they are not so powerful in the afterlife that could strangle you, burn houses down (read that in another post) or do anything that requires a physical body.