So the whole MSG thing was racist hysteria?

Bolding mine. So you have no evidence that the Chinese food you ate even contained more msg than other foods you eat - you just heard that it was reputed to have high amounts, whatever that might be. You have no evidence that your claimed health effects are even due to msg, vs the many other ingredients that you don’t ordinarily eat, such as wood ear mushrooms, enoki mushrooms, bamboo shoots, etc. But it must be the added msg!