This could be explained by regression towards the mean. When your health problems reached an extreme they were very likely to eventually get better. This might have happened regardless of any changes to your lifestyle.
It really is a very fascinating phenomenon. My friend who works as a psychologist have noticed that the most "successful" work is to always accept crisis patients immediately. If they have to queue for 2 months before getting clinical help, they have often improved by themselves, and it is therefore harder to reduce their problems further.
I'm having a hard time figuring out your point for this specific situation. Are you saying the list of symptoms I described would eventually go away by itself?
It's not that there's a regression-to-mean force that eliminates abnormal symptoms. It's more that the symptoms have some underlying cause that will fix itself over time.
If you start some intervention (such as stopping caffeine) at the same time you are naturally getting better, then you nay false attribute your getting better to the intervention rather than to its real cause: our bodies tend to bounch back from illness.
https://en.wikipedia.org/wiki/Regression_toward_the_mean
It really is a very fascinating phenomenon. My friend who works as a psychologist have noticed that the most "successful" work is to always accept crisis patients immediately. If they have to queue for 2 months before getting clinical help, they have often improved by themselves, and it is therefore harder to reduce their problems further.