Worth a trial might also be to look at the following nutritions, which would be also "soft".
Fat, sugar, manganese. I myself improve very slowly by reducing them (to be short).
Sugar might be the first time difficult (at least that´s how I´ve experienced it, especially when ill with mecfs)
Fat I eat now only one time a day, with a "good" improvement - so far. Both are long term changes in lowering acetylcholine. So, there might be also the opposite possible/needed. (Here I remember the symp/paras. occur?)
Same with manganese, I reduce it to say the min RDA´s, lowering the activity of the iNOS in the brain, with a significant loss of pain over three years, and an immediate improvement of sleep. It´s no fun though.
I´ve made threads on the issues for the theoretical background, piercing some things together.
If it works, there is a good chance that it appears in autumn more clearly. But it would probably take years ... (that´s my experience so far.)