Hello, 10 months ago I went to see my GP with a sudden retracted left nipple. I was referred to the breast clinic and had lots of tests, ultrasound, mammogram, etc, which all came back clear. Over the last couple of weeks I've noticed quite an intense burning sensation in the nipple area, which seems to be more noticeable in the evening. Has anyone had anything like this? I don't know whether to be worried or go back go the GP.