The food connection IS perplexing. That said, once you develop a neurological condition, certain foods and their chemical compositions may now becoming troubling whereas before they weren't. The body is a complex system and nothing is straightforward in it. Everything depends on circadian rhythms, diet, medical conditions, all the blood chemistries, cardiac status, respiratory status, general health, sleep status, etc., etc. So this may also explain why a food that causes problems at one time may not at another. It is all so vastly complex. If you find that one thing consistently causes troubles, well, at least that can then be avoided.