It is obvious you care a lot about your cats and are doing all you can to ensure their health and well being. Many positive vibes to you and them that the other two are negative for FeLV also. And also that Baddy remains symptom free.
I have so much fear of anesthesia that I can't imagine having to do that for blood tests. My vet recommends a yearly "wellness" panel be done on all cats age 7 and up. Even a more elaborate panel on cats age 10 and up. No anesthesia is given, or Emla cream (never heard of it). I ask that the blood be taken from a leg because most of my cats are black and they have white skin. The shaved place remains a blemish for many months, and if it is on the neck it is very visible. My Lily, who just had dental work (who is sitting by my computer now looking and me and purring), has a place about 2 inches by 1/2 inch on her little left leg where the IV fluids were injected. That may be where they took blood before the dental procedure (to check that all was well, first), too, but I haven't looked her over all over to see if another place was shaved. Usually, if they can take it on a leg, they take it from inside a back leg. Lily had a gas kind of anesthesia, not an injection. They said the gas works fine for cats and small dogs and is less risky than for injected anesthesia (and less expensive). She did have to fast for 12 hours beforehand, though.
Anyway, if you trust your vet and think you have the best one available, then I wouldn't worry. However, it is always good to question everything the vet does, recommends, or doesn't do. It is important to be well informed regarding cat health, just as it is for your own health.
Best wishes to you and all your kitties for the new year.
Robin
