PLEASE HELP 😢 lump bigger than a 50p coin on neck

Charley Knows • 24 and living without a thyroid 💪🏼
So randomly today I felt this lump. It doesn't hurt and isn't hot to touch. It's hard not soft. I'm in the process of making a doctors appointment but it could take up to 2 weeks.... It's very hard to picture but I hope you can see it. Thanks for any comments 
This last picture is my other side to show what it normally looks like!