[simoncion]

> You sound like an addict just since you're talking quantities of caffeine.

I might have misunderstood what you were trying to say. If I did, I apologise in advance:

Because I get a day-long headache whenever I don't drink a caffeinated beverage for a day or so, I know that I'm a caffeine addict.

Speaking about volumes of ingestible substances with somewhat-known properties to provide a general idea of how much of a thing one is ingesting doesn't mean that one is an addict; it means that one is interested in attempting to convey information somewhat precisely. If you don't specify things in known quantities, you're left with vague and imprecise descriptors like "some", "not much", and "a lot".