Taking a drink of green tea in the morning to wake up, suddenly wanna puke and then feint. Why?

So this morning I woke up just as I always would, I am in college btw 19 years old and of very good health as I am also a soccer player here. But besides that, so this morning I woke up normal, used the bathroom and decided I would take a drink of my arizona green tea, so my body could wake up and the fact that its tasty. So I go and do this, i take a chug of it and instantly dont feel right, I have a sudden pain in my chest right under my left ribcage area, so I think maybe its just gas or something caused by it, so I start forcing myself to burp and it begins to slightly take the pain away each time. But also I start feeling like I am going to puke. So I go to the sink and let my body do what It wants, trying to also force myself to puke but not like inducing it or anything, just letting it happen. It doesnt happen, but I do start feeling very light headed, and my ears start ringing like crazy and tunnel vision starts, I know im about to feint, so I go to my bed and lay down facing the ceiling and slowly come back to normal, now 40 minutes later as I am writing this I feel completely fine, what the heck happened? I have never had anything like this happen to me before.