Shedding, Molting, or a bigger issue?

[HeadlessH00ligan]

hello!
so, this is link ( aka littles ), my almost 2 year old black capped conure. he’s very adorable and i love him to bits.
however, im concerned. yesterday, in the span of my work shift (2pm to 7pm ), he has been picking his feathers and revealing his gray downy feathers. he was totally fine yesterday morning before i went into work, and i came home to him looking like this in these photos.
the thing is, the birds were at the vet just 2 days go, and the vet checked him and his flock mates over, and said they look perfectly fine. she did not do any grain test or anything, just looked them all over and weighed them.
i’m literally typing this at 3am, im very worried. if someone knows what’s going on, please tell me ..
thank you

 

[HeadlessH00ligan]

this is what he looks like normally, by the way ( he’s next to his girlfriend )

 

[Jcas]

Will he allow you to part the feathers and look for new quills coming in? That would be a definite sign that he’s molting. I hope that’s all your boy has going on; he sure is a handsome guy!