Hi,I ve been having a bit of an issue that s worrying me lately,so,first off my neck started to hurt in the back part,after that it kind of stopped but there was a bump on the right side of my neck,it only hurt for 1 day,and then stopped hurting but stayed there,it s pretty soft and a bit flexible,I had an ultrasound done and the doctor said it s probably happening due to an infection,But I ve been having troubles,I sometimes have trouble i need to take a heavy breath,and some times when i do i get a bit of a chest pain on my left side underneath my heart,Would appreciate any help thank you