That is the same symptoms I would get...the legs would get wobble and sometimes even weak and then I would have the shortness of breath...since doing NB. I have not had this issue...I contribute it to the Hawaiian Bamboo Jade Seasalt ..(on every meal). But I have read that did not help others...so maybe it is a combination of thing such as the Seasalt , kelp and possibly the thyro-complem(not sure on this one).
I do know when I eat more veggies with the HBJS feel much better...thinking the veggies helps to get it into the cells much better then other foods.