What are these pale brown spots/patches?

[Historia1996]

Hello!
I'm 22 and in the past few months I've noticed 3 small  (about 10mm) brown circular patches appear on my stomach.
I'm just wondering what they are or what could have caused them as reading online when I have no medical professional knowledge has led me to panic I have something nasty.
I was just hoping someone with medical knowledge may be able to put my mind at ease.
The spots/patches are not itchy, cause no problems, if I do scratch them they flake off and reveal my normal skin colour - but don't disappear, it goes red like I've scratched the skin too much if that makes sense? It's almost like skin peeling, but still doesn't hurt.
Please any help would be lovely! Thank you so much in advance!

[purple1234567]

First, I want to assure you that Internet searching is often the cause of nothing more than panic- it's just too easy to find the worse case scenario and rarely, that's what it is wrong.  

I wouldn't scratch the area, scratching at things like this often can make them worse and irritate the area- so try not to mess with it.  

It will be important for you to go ahead and have a doctor look at it- they will be able to gather your medical history and examine the area in person- both are essential in getting an accurate diagnosis.  Since the spots don't hurt, that's a good sign- but go ahead and get a doctor to look at it so you can have some peace of mind.  Let us know how you are doing.