Crazy Eye Pain & Headache = MSG Side Effects?

This morning, I woke up with some crazy eye pain, headache and nausea and I had no clue what caused it. This is my 2nd time having these symptoms. The first one was sometime last year when I had to call in sick. I usually don't have headaches. Just this one is too strong for me to do any normal works: the only thing I can do is just to lie down and do nothing.

Once I got better around 11 PM, I did some web search and now I think it might be related to the high intake of MSG. According to this site, my symptoms are MSG side effects, and guess what?I went to a Chinese restaurant last night and ate a lot! Too bad, I don't remember what I ate last time I had this problem. If I remembered, I would be more certain. :)

Oh well, MSG can be unhealthy anyways, so I guess it's time to cut, or reduce, MSG out of my diet?