Hey y'all, I'm new to this but I was looking for input. I'm a 19 year old female who is normally active but hasn't been recently due to dome hip problems. Anyways, in the end of August I started to notice a lump where my clavicle meets my sternum on the right side. It started off small but within the past few weeks has gotten noticeably larger. Also my right clavicle sticks out a little more than my left one. It's not painful but if you touch it you can feel some swelling. Other symptoms are a cough, tiredness, and shortness of breath but I'm not sure if it's from the lump or if I'm just getting a cold. I'm freaking out because I don't know what it is so if anyone has any input I'd greatly appreciate it.