True, I believe there is connection but it's not always cut and dry. For example, you could say that if you had a dream where someone kept trying to kill you that that could mean something, you could also realize that you watch a lot of horror movies and your brain might not be able to tell the difference.

Dreams mostly serve as a way for your subconscious to process everything. Dreams are just simulations. Typically, the dreams you remember are in a state of fearlessness. We fall into REM, and we are paralyzed, and our body turns off the ability to fear so we can face our fears in mental simulations. This is why REM sleep is so important for emotional well being. So throwing up in a dream is really just a way to help the dreamer accept the fact that they can throw up. Maybe they need to get something out of their body, but the dream (if you happen to remember it) is showing them how to do just that. Even if like you say, it symbolizes something that might not be food at all.

I believe in my dreams a lot. And in the interpretations, I've put it to the test, and it confirms everything.

Better start paying attention to your dreams.

Dreammoods.com knock yourself out. Put it to the test hahahahaha