i could be wrong, but back pain is generally not a symptom of lymphoma. painless rubbery lymph nodes in the neck, armpits, or groin, as well as fever, sweating, chills, unexplained weight loss, itching, and lack of energy are the symptoms of lymphoma.
you mentioned chiropractors. there is no such thing as aligning your spine. if your spine is out of alignment, no amount of external pushing and pulling will fix it. a chiropractor turned psychiatrist did an audiotape on it few years ago for the medical community and "outted" the chiropractors. there were many dishonest practices discussed, such as taking an xray before treatment in which they turn the patient slightly to the left or right so the normal curve of the spine looks like the spine is out of alignment. then, after several sessions, they take another xray with the patient less turned to the left or right and show the two xrays to the patient to show the improvement. finally, after many treatments, they take a perfect xray with the patient not turned at all and now the spine looks terrific. chiropractors are the model for quackery.
now the deluge of chiropractor testimonials begins. sigh.
-Amnia