I feel like I've been jumping into the threads at the most random times.
I don't often encounter smells or tastes in my dreams, or register them as strongly when I read either. Unless it's something really strong or foul like garbage or salt or something like a gritty silt texture grinding between the teeth (which isn't really a "taste"). I've had friends tell me they've had dreams about eating a ridiculously good piece of chocolate and things like that. I just don't really have dreams about eating or tasting that much (in fact, my favorite dreams are where I don't need to eat or sleep or worry about sustaining myself at all--I just turn into something that can fly and go on an adventure). I have constant outdoor allergies, and on good days when I don't have to blow my nose as much it's kind of weird because I can smell everything--normal subtle things like the grass that's been mowed or the fabric on my backpack--and I love when I can smell just normal things I didn't realize I was missing for a while.
It's funny, because when I try to write smells and tastes into my stories I find that I tend to make my characters unusually keen at recognizing certain smells or tastes in some way that the normal population maybe isn't (probably because my own sense of smell is kind of muted and it forces me to include smells and tastes from the setting that I otherwise wouldn't consider. Or maybe it's just wishful thinking.... What super power does my psyche secretly desire? An amazing sense of smell! And this whole time I thought what I really wanted was the ability to fly...
). Then I spend a lot of time wondering if the smells and tastes I describe seem vivid and believable enough for people with a less-hindered sense of smell than me.
Speaking of dreams, my flying dreams are interesting because I usually morph into something that can fly (yeah, like an Animorph...my flying dreams really took off, pun intended, when I was a preteen reading those books), but my fear of heights really seems to come out in these dreams too because there's always some limit--usually the middle height of the surrounding buildings or the building I'm in in my dream--that I can fly up to, and any higher than that feels kind of freaky and off-limits like it's "too high," or I'll get sucked up into the sky or something. Not as cool as smelling smoke or having a dream about a lion ripping through your chest and having it correspond to something real, though (aren't cats just the best?).