Hi -- I Woke Up Experiencing Swelling Just Above My

Hi -- I woke up experiencing swelling just above my collarbone on both sides. I don't feel a hard lump, just sort of like jelly, but quite swollen, visibly so. I am 5'5" and about 170 pounds, athletic build. No other real symptoms, although I have experienced some recent weight gain in my abdominal area that I cannot quite attribute to anything (my diet or exercise regimen has not changed)