Karen was diagnosed with Lupus at one point.
Around that time we cleaned up our diets, went organic as much as possible, got the shampoos, soaps, and other chemical based stuff, like Fluoride in the toothpaste, out of the house, and off our bodies, the symptoms for Lupus and Rheumatoid Arthritis went away.
Undiagnosed food sensitivities and allergies, more common that most realize, can cause Lupus/RA like symptoms in some people.
Nightshade plants, that are very common in our diets in many different forms, are particularly prone to mimic the symptoms of Lupus and RA.
http://www.diagnosisdiet.com/nightshades/ https://healingautoimmune.com/list-of-nightshades-foods
Everyone with non-textbook problems should keep a food journal, as symptoms may appear up to four days after you ate the food that you are reacting too.
For cleaning supplies we switched to White Vinegar and Apple Cider Vinegar for food related items. Switched to Hemp based soaps and shampoos.