Im a little concerned.

Ok ladies no bashing please.. well lastnight my neck was itchy so I decided to look in the mirror and I noticed a mole that's never been there before I ignored it. Today I was looking at my nails because I was thinking about what color I wanted to paint them. Well I noticed that my left index finger and right thumb nail have a brown longitude line that goes from the bottom to the top of the nail. Should I be concerned?

Here is the mole

There is the line on one of my fingers..

Do you ladies know what could be wrong? Should I conta my doctor?

TIA.