Are there signs of FIV/FLV?

I feed a beautiful stray outside my house. She will let me pet her but no one else can get close. If I try and pick her up she runs. Any way...I want to get her spayed (as soon as I have the money). The last couple of days she doesn't eat as much as normal. She is VERY skinny and has this look about her. Her eyes look droopy. She looks like she doesn't feel good and she is not grooming very well. I know that something is wrong so I don't dare bring her into my home. Can you tell if a cat has Leukemia just from their appearance?

No. Sometimes they look sick, sometimes they do not. Only way is to test her.

nope, no way to tell, she could just be sick with something else. All my kitties are leukemia positive and they are beautiful, healthy-looking kitties