I heard a heavy deep almost demonic breathing on my left ear
Hearing heavy and deep breathing or a similar sound in your dream can symbolize various things. In some cases, it may indicate that you are feeling suffocated or overwhelmed by a situation or person in your waking life. It may also indicate that you are holding back your emotions or not expressing yourself fully.
If the sound is specifically demonic or menacing, it may represent your fears, anxieties, or insecurities. It could be a sign that you need to confront and overcome these negative emotions or energies in your life. Alternatively, this dream could be a reminder to be attentive to what is going on around you and stay alert to potential dangers.
Overall, the specific meaning of the dream would depend on your personal experiences, emotions, and current life situation. Consider exploring any stressors or conflicts in your life and working to resolve them, or seeking support from loved ones or a therapist if needed.