I have no history of illnesses.I don’t exercise much and consume sugary and salty food daily. I have felt weakness in my arms for the past 6 months and recently my legs are feeling weak too. Today, I went to sleep at 10pm (early)as I thought I lack sleep and felt quite nauseous although I ate sufficiently but when I woke up in the middle of the night and tried to go back to sleep, body felt cold and head feels weird, sending shivers that wake me.