Emotions still don’t feel harmless

Hi there, I am still struggling with being able to think of emotions as harmless. For example, I sometimes experience fear and anxiety with chest pain, anxiety and weakness and when it goes on several days my health is affected. I sometimes experience emotion as almost intolerable. I’ve tried so hard to allow by becoming the watcher, seeing the emotion in my body, describing to a Martian – but does the fact that the emotion is so acute indicate I’m resisting it? I definitely want the emotion to end even as I open up to it. What else can I try? Thank you.