Tolerance

anything else you would like? and as such i never said anything about what happens with whole blood, i don't see how that would help.

Energy as you are a minor? Your energy drops? Define "immune system drops." You get sick more frequently? Your white blood cell count drops? Or you just feel fatigued and run down?

I responded to you, Rain. And the possibility is certainly there, however all of the nutrients provided within blood are available from other sources regularly ingested.

white blood cell count drops and as an affect of that i do get sick more often and that obviously is not observed by me and the energy i meant i've tried to compensate by energy although i can't quite do it and as for the immune deficiency online happens with intense periods of going through this hunger.

Curious. Then why did you say that your blood levels were normal before?

Just for the record, I'd like to entertain the idea that since many vampires consider being a vampire sort of like a "sickness" in a way (sorry for lack of better words), maybe it's possible that blood, specifically human blood, contains a certain enzyme or protein that vampires lack. By consuming blood their body is able to digest and use the protein/enzyme found in the blood they drank. This could also explain why vampires fell a burning need to drink blood. It could be a result of their body knowing that blood contains the enzyme/protein their body needs so it develops an extreme craving for it.

*Again, just a theory. I don't have evidence for this one.

blood levels as sometime anemia can and will cause certain like you said psychological affects to make the body compensate, i put that in there for just that reason, its not psychological.

On the other hand, psychological dependency can also cause blood levels to drop as you described as well. Psycho-somatic impact of such things is often a "medical mystery."

and rain actually vampire are not allergic to sun nore can the not survive without food and water haha we just have an extra need for blood. to live healthy and happy lives, the thirst is like a beast, it needs what it needs and that's the only thing the movies and books got right about vampires for the record lack of blood *usually only when going through an awakening* will cause and immune system defficiency and cause a sickness, and most people think vamprism is a very recessive gene that just 'pops out' every now and then

Rain was referring to other unusual medical conditions in an effort to defend your case, and offer you plausibility.

"Most people" do not think this at all. As I said, it is highly probably that this is the result of psycho-somatic issues and dependencies.