itching

Hi everyone I'm new to this site and a new guinea pig mummy so looking for some advice if anyone can help. I bought my 2 boars from a breeder 8 days ago and they were just 8 weeks when I collected them. One of them is very nervous and hasn't really gotten used to be handled as yet, but will...

Mines seem to scratch themselves at -least- once or twice every five to ten minutes. Sometimes even more. Is this normal? I have taken them to the vet and he even checked them for parasites and couldn't find anything. I've been waiting for other symptoms such as loss of appetite, not...