I so miss bread fresh from the oven (I’m going to be adding the yeast)! You are absolutely correct about beaten egg whites creating air pockets. My family has always made buttermilk pancakes from scratch and we always separate the eggs, beat the whites to soft peaks and fold them in at the last minute. The pancakes rise beautifully! Have you tried this with your keto pancakes?
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