I smoke tobacco cigarettes by themselves, and I smoke weed through a pipe/ bong by itself. When I have both together in a spliff though, I always feel dizzy and a bit sick. Is this odd, I can smoke both fine individually, but when they're mixed it makes me feel a bit ill?
You proboably have to get used to them. It's all we really smoke around here apart from bongs so I'm used to them, but I can see the mix being weird if you're not used to it.
Too much tobacco in your spliff. Try using less. edit: too much tobacco can make you dizzy, unbalanced, the spins, nauseous, etc.