Hi my name is Leanne, For the past 6 months I have felt really fatigue all the time, and I have a slight problem with my throat I keep feeling the need to cough or grunt because I feel I need to bring something up, it isn't sore or anything it's just irritating, I haven't been to see my doctor about this because I wasn't worried but I have recently discovered a lump in my collar bone and I don't know what this could be, can you help?