Soft spot question?

I have been to the pediatrician about this, and my son potentially has craniosynostosis, but his soft spot always looks sunken like this. Does this look to sunken? He eats great, and has plenty of wet diapers, but it always looks like this no matter how much breast milk he takes in. He eats ever 2 and a half hours and he eats 3-4 ounces at a time. He won’t take anymore than that anymore often, as I’ve tried. I’m just worried about my bAby. He’s almost 8 weeks old. Should I worry or just trust that he’s okay since the doctor said he isn’t dehydrated as long as he is eating/peeing as usual? I’m a second time mom and I still feel crazy worried about everything.