Am I being paranoid

Hi I am new to the forum, and this is my very first post. But I wanted some advice. My nipple has recently become inverted and I can feel a thickness half way around the base of my nipple. And when I lay flat it looks like I have a slight dimple to the left of my nipple. But the thicknesses is not always there, its never there in the morning till I feel for it and my hubby said he couldnt feel anything. Now its making me think I am imagining  the thickness there. And being paranoid. I have an appointment tomorrow with the nurse for them to look at it. But I dont want to waste anyone time. Has anyone else experienced this issue.