Don't stop iodine, but do start on ALL of the co-supplements ASAP. Some swelling of the thyroid is normal when first taking iodine. You were severely deficient and the thyroid is grabbing as much as it needs ASAP to become normal. Every cell in your body needs Iodine but the thyroid gets all it wants first.
"I've only been taking 2 drops (900 mcg) of survival shield nascent Iodine for two weeks."
Nascent is not recommended. You need both Iodine AND Iodide which is contained in Lugols liquid Iodine and Iodoral, per Dr. Brownstein.