Low grade fever and swollen lymph nodes for 2 months

I have had swollen lymph nodes in my neck and a low grade fever (99.0 to 100.8) for over 2 months now. All my blood work has come back negative/perfectly healthy. I was tested for mono, lyme's west nile, RA, lupus, cat scratch - all negative. No signs of infection, inflammation, or abcess anywhere. White blood cell was fine. Sed rate, fine. CVC, fine. A CT scan did find ovarian cysts, a uterine lesion and pelvic fluid, but my gynocologist said none of these are related to my current illness. She said I probably have fibroids and endometriosis, nothing serious.

My infectious disease doctor said the pelvic fluid could cause the fever but not the swollen nodes. He said he thinks it's stress causing my symptoms!! I think he's crazy. Yes, I have had a stressful year with my husband and I both losing our jobs and we almost lost our house, but about a month before I got sick, everything had been taken care of - we both have jobs and the government saved our house. All is VERY good now, except for this illness! And I still have a fever even when I've stayed in bed for a week. That, to me, is not stress!

Other symptoms I have: severe night sweats, severe fatigue, bodyaches, chills and sweats, weight loss, nausea, loss of appetite, intermittent abdominal pain, pelvic pain and diarrhea. I also have a stiff neck, but they are not concerned about that as I have had a herniated disc for years, but the stiffness started 2 days before I got sick and has not gone away.

I really need some help here as this has ruined my life. I used to be a vibrant, busy woman who never ever sat on the couch. Now all I do is lay around all day, I can't even work (luckily my job allowed me to take medical leave). My life has completely stopped and I am desperate to get it back. Any support, ideas, comments would be greatly needed and appreciated!