I am 28yrs old and have a palpable mass in my left breast the size of a 50 cent piece.It causes me pain and shortness of breath.I sweat perfusley I usually end up changing my shirt mid way of my work shift.I get small lumps under my arms...My doctor has ordered an ultrasound but I was wondering if u could clarify on this so I won't be as ancey while I wait to have that done ,and the results ..Thank u very much I appreciate your time...