Funnily enough, I'm the exact opposite. I can drink all the spirits I can handle, and more, and not wake up with a hangover in the morning, just a little tired.
If I touch beer though and drink enough to get me ratted, I'm like hell in the morning and can barely move or think, as well as get a splitted headache.
Not complaining though, 'tis a great excuse to stick to the heavy duty stuff.