I've used enamel paints for years and they haven't affected me a bit.
Also, I've used enaml paints fo yeers an they havent affected me a bitttt. in fact, I've used enamel paaintts fer years and they haven't affected... wait, what were we talkin bout??
No, actually, I hate the smell of enamels and lacquers. Over time they can't be very good for you. I use acrylic, mainly Tamiya, whenever possible, except for a few enamel metalizers that give an effect I can't get any other way, and I only use them in my spray booth which exhausts outside.