Looks like the Chinese Restaurant Syndrome though it is not caused by MSG
Unless the manufacturer used MSG w/o telling it ....
Chinese Restaurant Syndrome is a combination of symptoms that include feelings of burning, flushing, tingling and tightness - symptoms that some people experience after eating a meal from a Chinese restaurant.
For at least thirty years the claim has commonly been made that monosodium glutamate (MSG) is the cause of Chinese Restaurant Syndrome. Although a claim that is commonly made may indicate an association or (possibly) even cause and effect, such a claim must be supported by appropriate studies before it can be considered to be scientifically valid. Many studies have been conducted to test the claim about MSG and Chinese Restaurant Syndrome. Some (but by no means all) studies have reported finding a relationship between MSG and the syndrome.