i was going to say pretty much what LIP said. first thing i thought of when you mentioned dizziness and nausea was your equilibrium. especially if it's an on-going thing. But it seems like i heard from somewhere that smoke in the ear can cause an ear infection as well. i fucking HATE ear infections. i had one about 2 months ago. HORRIBLE SHIT. probably the second worst health related shit i've experienced as far as pain. number one would be the spinal tap i got a long time ago. they stuck me like 4-5 times before they got it right.

...anyway, sorry for trailing off topic. i had a friend once who had a permanent ringing in his ears from smoking heavy all the time. he quit and his shit still rings. so apparently you can fuck yourself up in a few ways when it comes to shit like this. hope you get better soon though.