A more traditional minimalist shoe is a moccasin. Footear by Footskins has a line of them. The are available in a variety of soles, e.g. crepe soles (shoe-like with a heal), rubber soles (more flexible), molded soles (thinner and more lightweight but still suitable for outdoors), and leather canoe softsoles (for mostly indoor use). For more see What Are The Main Differences In Your Soles? The moccasin uppers come in a leather choice of deerskin or cowhide. Deerskin is more flexible and is the preferred material to achieve the barefoot equivalent. I bought a pair for around the house as pictured here. I found it cheaper to buy through Amazon.com. See moccasins by New and Bestselling for: Men's and Women's.
I know that soy can cause inflammation and if you are not using soy free eggs, that could be part of the cause. It may not be the actual egg but the soy that is the problem. just a thought. Here is an article that has some interesting info on soy. http://articles.mercola.com/sites/articles/archive/2012/07/29/soy-effects-on-women.aspx?e_cid=20120729_SNL_Art_1