Back And Neck Pain, Tension Knots, Stiff Arm, Bump In Neck, Shoulder Blade Stiff And Swollen. Have Tension Headaches

Question : When I was eighteen I notice I had back neck pain more like tension knots but it was never a real problem, I noticed I carry my stress in the back o my neck also by my hair line. One time like 8 years ago I had a golf size ball in back of my right side of head and it gradually went away. Two years ago I was faced with many problems and I noticed my right arm felt stiff and bumpy, as time went by and in 2011 when my mom passes away I notice a bump on my right side in the back by my neck, I look somewhat hunch back, I know I have gain wait but the funny is that this fatty bump changed my outer skin, where the bump is located it feels real smooth, I noticed that when I rubbed the bump I feel some kind of relief, I noticed my right shoulder blade has gotten real stiff and also a little swollen and there's a small pain on my arm and when I rub my arm it feels bumpy, I had some one give me a massage and then person told me the bump feels very hard but as she massage me i felt relief, she told me it felt like I had an excess of fatty tissue. My right upper shoulder feels swollen and when in rub it feels hard too. I also have tension headaches and when I do have them that bump in the back of my neck aches more