Your best bet is to take it to a reptile vet and have it checked out - the other ways are not exact, and aren't even accurate most of the time.
Hopefully, you'll have no problem finding one. If you have trouble, try your nearest zoo - they may be able to get you names of vets who would be willing to check.
Hopefully, you'll have no problem finding one. If you have trouble, try your nearest zoo - they may be able to get you names of vets who would be willing to check.