"When taking a break from supplements, I suggest you take a break from all of them"
If you eat healthy, you're taking too many excess supplements.
Re-start slower with Iodine, Mag (like Mag-Malate), Selenium, active-Bs, and a probiotic with 10+ strains still alive at consumption. Bifidum is generally more locale to the lower color/intestines, while Lactobacilli are higher up the GI.