Sorry, It to be "have" and not "had". I still working to cure my hypothyroidism, and always have high iron.@Lucas when you said had, does that mean you are no longer hypo? Joint pain is often associated with low thyroid function and/or high reverse T3. What was your ferritin when you were hypo? 300 is high, but I have heard/read several folks even on this forum that felt horrible with ferritin as low as mine.