### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I ve been having a lot of strange symptoms over the last two weeks, and been to two doctors (with a follow up this coming friday), but I don t know if I should go to emergency or not. Two weeks ago this started with fatigue , mild fever, headache and body aches and a swollen right neck lymph node, but no respiratory symptoms or sore throat . It started to get better, but then the fever returned the next week at 102.9 degrees. A clinic doctor dismissed it as a sinus infection, but I ve had bad sinus infections my whole life and this produced none of the symptoms. Towards the end of the second week I was also having twinges of pain in my kidney area, and pain in my lower abdomen when I take a deep breath. Now, going on my third week of this, the pain in my lower kidney area feels like fullness or pressure on either side of my back, and I just feel like my lower abdomen has pressure as well. I did just finish my period, but this sensation is highly unusual for my menses as well. I can t tell if it s something innocuous like gas or something worse.... the second doctor I went to ordered a blood test to test for mono, but I m pretty worried that it might be something bad with my kidneys. Also, I did develop a slight sore throat late last night/early this morning.

### output:

Dear friend, welcome to Chat Doctor. Your symptoms can have many differentials and only detailed clinical and lab investigations can tell what it is. if you do not have burning urination, colicky pain from flanks to groins, blood/ pus in the urine, omitting also, it is unlikely a kidney trouble. Since it is 3 weeks, you should get through exam. And routine blood labs, an ultrasound of abdomen and pelvis.  Neck lymph nodes usually enlarge in head neck infections, and left neck glands sometimes in stomach problems. So, follow medical advice. Take care and pl. keep me posted on your progress.