this doesn't happen to me all the time but in the morning after eating salty foods the night before, my hands are stiff, sore and puffy, same with my feet. The thing is they don't look puffy. I just started noticing that this happeneds after eating foods high in salt. Is there any diseases or autoimmune disorders that i should be concerned about with these symptoms? I am only 33, 5 ffot 2 and weigh 125 pounds...not over weight, and healthy.