Oh my gosh! I went through this same symptom fear once. I was sure I was the only one in the world.
I was in the height of my health anxiety when it happened, and I went to the doctor and showed him my toes. (I was worried about a brain tumor.) He looked at me and said something like, "Why were you expecting them to be the same?"
You are okay 2anxious4this. This fear is coming from your health anxiety, not you. Acknowledge your Health Anxiety and then divert your focus onto something else. It is super hard at first, but I promise that it gets easier.
You got this!