Concerning Area
I am concerned that these two spots on my chest are dangerous. I have had numerous sun burns, loved in Arizona for 22 years, and visited tanning beds for a few of those. 
...your story is similar to so many of us. The sunburns and days spent tanning in our youth are catching up to us. I am so sorry you are dealing with this stress now.
While we can't diagnose, we can suggest you have a dermatologist give you a thorough skin check. It's not uncommon to have precancerous spots appear on your chest. I have treated my chest with a topical chemotherapy several times over the last few years for just this reason.
I am including a few articles you may find useful. One is on self-checks, which you are obviously doing a great job with and the others are on finding a good dermatologist and the ABCDEs of skin cancer.
Please keep us updated on your progress! We are here for you any time!
https://skincancer.net/life-with-skin-cancer/skin-cancer-body-map
https://skincancer.net/life-with-skin-cancer/finding-good-dermatologist
https://skincancer.net/clinical/abcdes-melanoma
All my best,
April, SkinCancer.net, Moderator
