Hello, Welcome to Health Care Magic. I read carefully your query and I understand your concerns. Actually, studies have shown that people who used crystal methamphetamine at least once a week may be nearly four times as likely to develop non-Hodgkin’s lymphoma (NHL) as people who use it less frequently or not at all. You have to visit your local doctor in order that he or she checks for swollen lymph nodes, including in your neck, underarm and groin, as well as a swollen spleen or liver. In order to rule out the possible lymphoma, I would suggest you as a beginning to make a complete blood count, an X-ray and/or CT scan. Hope I answered to your question. Don t hesitate to ask again. Kind Regards, Dr. Ina Zaimi