If you are hanging yourself: it is a message from your unconscious that your personality is unfolding and still “up in the air,” but this stage will soon be completed. See Hanging.
A stabbing refers to an immature, aggressive sexuality (See Dagger) and the desire for a quick resolution to conflicts or problems. Suffocating refers to situations you have not yet accepted. See .Asthma. Drowning either serves as a warning or indicates that you are about to drown under the weight of present events, responsibilities, and dangers. See Execution, Gallows, Murder. Being an eyewitness to a murder: the disagreements that people around you have are none of your business—leave them alone. Murder-dreams imply that you will live to a ripe old age. Dreaming about being murdered: are you refusing to accept the harsh reality—that a phase in your life is coming to an end? If you are participating in a murder: you are shamelessly exploiting someone’s bad luck for your own ends.
Depth Psychology: While you feel you should be ashamed of what you have done, you have pushed your guilt feelings underground and now are facing the consequences. Sometimes the dream also means that you want (or need to) end a phase in your life.
The murderer represents hidden fears coming to the fore, which weaken or threaten to destroy your personal growth. Do something about it and do it quickly. Dreaming about murdering someone: you are struggling with problems and would like nothing better than to get rid of someone (unconscious aggression). Clear the air as soon as possible! Dreams about murder mean that an insight or opportunity for advancement has been “murdered.” Usually you yourself are the murderer and are being murdered. Additional dream symbols will be highly informative.See Aggression, Anger.... Dreamers Dictionary
To be suffocating someone mav mean we are overpowering them in real life.
If we do not wish to have any sort of relationship with someone we may find that dreams of suffocation occur. Fears about sexuality may also surface in this way.
3- Suffocation may appear in dreams when negative energy is too strong for us to deal with.... Ten Thousand Dream Dictionary
To be suffocating a dream character may mean we wish to shut someone up in waking life.... Dream Meanings of Versatile