I experienced symptoms that were identical to what Dr Lawrence Wilson describes in copper detoxing. My doctor thought I had a copper issue because my Zinc is low and so is my Ceruloplasmin.
My experience was similar a few years ago. I had symptoms of zinc deficiency, then started taking some higher dosages without copper.
Recently, I've been having low copper symptoms including, peripheral neuropathy, optic neuropathy, etc. After a month of copper supps., I tested ceruloplasmin and serum copper. The copper was in lower normal range, but the ceruoplasmin was barely in range. Ceruloplasmin is a copper protein. If it's low, it could mean copper deficiency.
Anyway, I brought this up because, when I tried resistant starch and starchy foods, I began to feel worse after a time.
Eventually, I couldn't tolerate carbs. at all. I started ketogenic diet about 2 mnths. ago, and have begun to feel much better.
I started copper supps. about 6wks. ago because, even with the diet, there were issues. I wonder if some of the resistant starch intolerance I had was because of the copper deficiency.