Two of my many hypo were fluid retention and pain. Fluid retention was notably around my face and abdomen but there was fluid in the lower legs. My face was puffy around the eyes, eyelids, my face was round and with a 2 inch double chin full of fluid...and a very enlarged abdomen that affected my breathing it was so bad. I could not bare even the lightest sheet on my abdomen as it hurt. A LOT of fluid! I also remember my toes aching badly in particular.
Those symptoms are quite common with hypothyroidism.
Two grains of Armour is about equivalent to the daily output of an average thyroid gland. When you take into account the losses from absorption of thyroid med, that means that on average a person would need more than 2 grains. What are your latest thyroid related test results and reference ranges? Also, Vitamin D, B12 and ferritin? If tested for cortisol, please post that also.