“Health Anxiety?”

Hello, I've been worrying about my fingernails because I noticed all of them have a barely noticeable gap on the edge of them. I already have health anxiety and my mind is racing that it may be heart disease. I honestly cannot tell if my nails have always been like this or if I just noticed them.

What causes me the anxiety is the slight discoloration, like a white patch, followed by a pink line on top of said patch. Followed by a slight gap. I'm worrying that it's Terry's Nails. A lot of the people I've spoken to insist that my nails look normal to them.

I also have ulcerative colitis so I'm unsure if that may be relevant. Any responses would be appreciated!