Is it normal for a child to absolutely love to vaccinations and taking blood ?

Some do for approval: A child who decides to act "big" or "tuff" after mastering their early fear of either procedure can have pride & separate themself from their peer group. Such an accomplishment should be applauded. I see it more often in litttle extroverts who enjoy new experiences.

Agreeable: It isn't typical, that is for sure! some kids feel proud of themselves for taking the needle without crying. It might build their confidence or they might want to show off in front of a scared sibling. Either way, if your child isn't afraid and likes to get them, consider yourself lucky!

Attitude...: ...Has a great effect in modifying the perception of pain. The pain of needlestick is negligible compared to, say, a stubbed toe, but a child will tolerate the "self-inflicted" pain much better. If they get it into their heads that they "want" the shot, they will hardly feel it.