You are having an enlargement of the cervical (neck), axillary (armpits) and inguinal (groin) lymph nodes.
There are a lot of causes of nodal enlargement such as infections (from routine ones to mononucleosis), lymphomas and other tumors, medications (captopril, phenytoin), Rheumatoid arthritis etc.
The good thing is that you have already consulted your doctor who can then make a diagnosis depending upon the symptoms and the biopsy results.
Take care and do write in after your biopsy results.
Lymph nodes can become swollen from infection, inflammatory conditions, an abscess, or cancer. Other causes of enlarged lymph nodes are rare. But the most common cause of swollen lymph nodes is infection. Immune or autoimmune disorders that can cause swollen lymph nodes include rheumatoid arthritis and HIV. Cancers that can cause swollen glands include leukemia, Hodgkin's disease, or non-Hodgkin's lymphoma.
Blood tests including liver function tests, kidney function tests, and CBC with differential
lymph node biopsy as well as chest x-ray and liver-spleen scan may be done for further evaluation.
Takecareand keep us posted.