If anyone could help, I would really appreciate it!
It could be due to the shading in different mode. I suggest to switch to sculpt mode and smooth out these areas and then come back to object mode.
You can also have a look at these areas in edit mode and you will see if there are distortions.
I figured out the problem... I am using a multi resolution modifier and had it turned on to only 1 (preview). When I change the preview to 2 everything is back to normal!