Lump on left side of head

Hi. I have had this lump of the upper left side of my head. It is really hard like a bone and every so often, I get these shooting pains from that spot. I've had these tension like headaches where my whole head feels like it's been in a vise. Now I am experiencing facial pain, especially across my cheeks and my arms feel like I've been carrying heavy bags up 10 flights of stairs. I am seeing a chiropractor because I have subluxations in the cervical and thoracic regions of my spine. He told me when you have subluxations along the spine, the nerves can be pinched and cause problems elsewhere. A year ago I did have an MRI and plenty of blood work done because my optic nerve was swollen in the left eye. Everything cam back clear but since then I have had these issues. I've also been battling a sinus infection and I am trying to find out if all this is related. Please help.