Lumps on neck which comes and go. Ent?

Hello Dr. I have been experiencing neck pain along with back pain..I have consulted physician psychiatrist neurosurgeon and orthopaedics but everyone told different things neurosurgeon said em having fibromyalgia and physician said weakness and orthopaedics said lack of calcium I ate 100s of tablets till now no one is unable to recognize it..The symptoms which I have is lumps on each side which smetms go and come , fever,fatigue,very rare night sweats,red patches on body but my cbp showed that I have 9.1 gms of blood..N everything is nrml in cbp report and have diagnosed mounted test and it was normal..Dr I think I may be having lymphoma so can you please say before biopsy which will be the easiest test to confirm and for this thing should I consult an ent? Or someone else and what advice would you give it to me...Thankyou in advance waiting for reply