I have taken both and will tell you that neither will help you if you have an adrenal problem. As a matter of fact, anything that makes your thyroid work better or produce more hormone or convert more hormone is only aggravating the problem. You need to have your adrenal or cortisol level tested and address poor adrenal function before you do anything to improve thyroid hormone production. I have experienced the same problems with Armour in general because of poor adrenal function, and treating adrenals has helped me feel better overall. But I do not recommend going off the Armour all together unless your doctor advises you to do so. Take the minimum you can while you treat the adrenals. And once the adrenals are up to par, you can start to raise the Armour.