Misoponia definitely sounds more severe than sensory issues.
anon91- Regular things can bother someone with sensory issues. For example, the feeling of a clothing tag, or a strong smelling food. With sound, certain sounds will bother them very much. Sort of like the feeling people get when someone scratches a chalkboard for a long time- it bothers you tremendously and makes you tense and anxious. But with a regular sound- such as certain ringtones (different for each person)