[Laforet]

>Headaches from too much sodium

Not to say this is a myth like Chinese Restaurant Syndrome, but there is honestly a lot of evidence either way so we can't make establish a causative relationship for everyone. It is quite possible for people to have a short term reaction to salt because the hormones in charge of water and sodium balance can take several days to stablise, but again, we are unsure of long term consequences especially on an individual level.

https://www.newscientist.com/article/2101015-does-eating-mor...

https://www.scientificamerican.com/article/its-time-to-end-t...

The rest of your symptoms suggest that you are either eating too much like the guy from Supersize Me, or have more underlying health issues that require a better designed diet to heal. It's not food but how you eat.