Are you concerned about the saggy area under
her (yes, looks quite feminine) chin? That looks ok to me. RES sometimes puff that area out - mine puffs his out when he's about to be fed. I'm not sure what it signifies.
If you're concerned about swellings on the side of the head, though, that may be, as mentioned, the beginnings of an abcess and needs attention from a vet.
The shell may be a little bit dull and has some white on it but it's not terrible. Has she shed scutes lately or is she starting to shed? Looks like some of the scutes are loosening.
How's she behaving? Is she basking and alert? From what I can see in the photo her eyes look fine. I guess her appetite is good. Does she chase after the goldfish with enthusiasm?
When you make her switch back to pellets and vegetables from her steady diet of goldfish and crickets she's probably not going to like it. She may refuse to eat for a few days. If so, read up on "how to entice a turtle to eat" info in the general info section of this site.
Keep us posted!
