My immediate thought would be blood lacking in hemoglobin — feeding from someone with an iron deficiency. But I'm also far from an expert in the intricacies of how vampire physiology processes what it eats.
See if you can find out who or what he's been eating from. Then we can at least go to the source and run some tests.
...
"We". You, I mean. I didn't mean to sound as though I was sticking my nose into your business.
Well, I invited you into my business when I sent you this message, didn't I, Miss Ghost? I think that's a good direction to head into. I doubt I can find out everyone that he's been feeding on, but a quick question here and there should at least build a broad picture. You know, I've always been better with something to do when faced with a problem; having a way forward is a tremendous relief. I feel better after speaking with you; thank you.
no subject
See if you can find out who or what he's been eating from. Then we can at least go to the source and run some tests.
...
"We". You, I mean. I didn't mean to sound as though I was sticking my nose into your business.
no subject
You know, I've always been better with something to do when faced with a problem; having a way forward is a tremendous relief. I feel better after speaking with you; thank you.