Recently been experiencing very mild heat/burning sensations in both legs, feet and hands. Last night, I experienced what felt like popcorn popping under the skin of my left leg that went away when I got up. When googling these symptoms, I seem to come across both Diabetes and MS. I am really worried, is there anything else these could be? It has only been happened the last 4 days but I never felt these things before. I don t seem to have any of the other symptoms for diabetes, such as extreme thirst or fatigue. MS does not run in my family either.