You can get ready and direct advice from your local colon hygiene professional, as that person might have plans, methods, supplements, and techniques to help address this. If you skip the colonics, just be sure your bowels are moving readily. It's all about cleansing and relieving the body of an accumulated toxic burden. Hypothyroid is often founded in the gut-microbiome. There are other causes too (i.e. - dental mercury, radiation exposure, stress, weak adrenals, toxicity of the hypothalamus, etc.). A colonic helps prepare for Phase 3. If you are prone to energy crashes, you'll have to decide. However side effects are generally short-lived and benefits gained often outweigh.