I have growth on the left side of my neck and i think its growing because i am having problems with turning 180 degrees to the left and struggling with sleeping on that side. whats the procedure that i need to follow to have my neck checked?

See a Dr in person: A growth on the neck can be many things: An enlarged lymph node, cyst, salivary gland, or tumor. Since it is disturbing normal neck function and sleep, the safest course of action would be to have it examined by a Dr in person, where they can feel the mass and gauge its connections, location and any other abnormalities. The Dr may do a blood test, xray or other tests as well.