u/EmploymentMain1811

Can anyone please help me!! I’ve been stressed out! The first photo with the blue circle, it was a canker sore in April hurt like crazy, pain lasted a long time it was like 3 canker sores in 1. Fast forward to today that is still there but it doesn’t hurt at all! I just want to know is this normal or should I be worried. In addition I noticed the roof of my mouth to be like that, is that normal as well? I’ve been on my computer reading a bunch of stuff and I’m getting freaked out!! Please someone help!