No I just recently have seen lint type bugs and actually just did a flea and tick treatment on him. I can see he is not happy but I too have noticed he can seem to see them also
If you are seeing the bugs, I'd catch a few and place them in a bag- call an exterminator and have them come take a look at the bugs to identify them. They can help you with getting rid of them from your home and you can head back to the doctor and/or vet to get the bites treated if needed as well.