I'm a 17yr old male and whenever I swallow I feel a lump in my throat, after I eat a meal I feel abit sick and the lump in my throat feels bigger, whenever I drink cold or warm drinks I feel the warm or cold sensation in the middle of my chest, my stomach also gurgles a lot, I feel as if my digestive system is really slow, I also have trouble pooing abit, I poo once a day but its not much that comes out, hope you can reply to this :(