I also use the same oils and have also increased intake of coconut oil and coconut creme [which is 70% oil]. Haven't noticed much there either but I'm sticking with it for now.
Keep in mind that there are MANY reasons for low thyroid. So iodine will not always help, and coconut oil will not always help. It all boils down to the cause of a particular person's hypothyroidism. The most common cause in women is unopposed estrogen from menopause.