What Causes Muscle Aches And Burning Skin?

23 yr old female, 5'2'', 120 lbs only medical history is low potassium and appendicitis. woke up this morning, my muscles aching, skin hurts to touch and if i force myself to cough i cough up phlegm. This has happened once before, I had had one drink made with a specific kind of liquor and woke up the next day feeling like this. I only drank one malt beverage last night that I have never tried before. Throughout the day the muscle aches have decreased and the burning skin has started to subside but I don't know if it's just because I'm in the resting position. Please help.