Boy can I relate to these posts. I've been diagnosed about 2 years ago, and my doc and I have been trying since then to get it all to the numbers HE wants. Sometimes I get so frustrated with him because I feel like crap when my numbers are CLOSE to where they should be. I feel like why should I WANT to be at or below 120 when I feel so awful as I get close to it. All of the symptoms you guys mentioned: extreme nausea, shakes, light-headed, and sometimes weakness and blurry vision. I, too, am inclined to grab something to eat just to kill that feeling. Unfortunately, the thing that alleviates the nausea best is a quick drink of 7-up or Pepsi. Now THAT defeats the purpose!
I agree with the quick drop theory. In cases like this, I trust my gut, and not always the machine. If I'm feeling low, but my meter doesn't agree, I usually treat it anyway. My nurse told me that one time. I'd rather need a little correction than an ambulance!