Eliminating most plants cleared up many symptoms for me. Making my own yoghurt from grass-fed/pastured cream helped a great deal, too.

Eliminating hard cheeses took some gumption, but helped dramatically. Sour cream got tossed out, too. Tested again recently. Don't know if it is due to amines or inferior cream source, but it got tossed.

Reducing amines helps as much as avoiding the phytotoxins in plants. (Phenols, polyols, salicylates, goitrogens, oxalates, solanaceae from nightshades, alkaloids, fungi, etc.)

Here is the page on Elimination Protocol for "Gluten and Casein Responders".

Here is The Introduction to the FailSafe Diet for those new to elimination protocols, and would like to find out which foods might be causing the troubles.