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

### input:
I have a low grade fever, constant nasal discharge (sometimes clear, sometimes green), I have been tested for allergies and they say I have none. I have muscle aches and pains, headache, low IgG treated with exogenous IgG (have been on for 5 months. I have had a recent CBC and everything is normal. I am constantly tired/exhausted. I play tennis 3-5 times per week and have 3 boys so I stay very active. However, I feel like I am dragging myself around. I have had nerve pain which has recently gotten worse. It s down the back of my legs. I have had a herniated disc/L4/L5 for 20 years and have received steroid/epidural injections. In the past year, they only last about 8 weeks or less. Before that, I would only get 2-3 per year, max! The nerve pain is unbearable. I have been to my primary care doctor who found nothing (she did a basic lyme test which was negative), an immunologist who said I have low IgG and prescribed the exogenous IgG, a chiropractor, a vision specials to see if my eyes were bad (relating to headaches). I don t know where else to turn or whom else to see. I am getting to my wits end!!! Please let me know what you think. I have an appointment with an Infectious disease specialist in a month as I thought that might be a good next step??? YOUR AD SAID YOUR DIAGNOSIS AND HELP WAS FREE!!! NOW I SEE ALL OF THESE OPTIONS FOR CHARGES!!! ARE YOU A SCAM???

### output:

Hi, If I were your treating Doctor for this case of kind of immunodeficiency, I would say that as per your description, fever, constant nasal discharge, muscular cramps and headaches are all possible in such cases and related to recurrent infections only! In fact, this is one of the characteristics / presentations of immunodeficiency diseases... Hope this answers your question. If you have additional questions or follow-up questions then please do not hesitate in writing to us. I will be happy to answer your questions. Wishing you good health.