Hi @elainejarrett I thought a good place to learn a little more about your diagnosis would be through some informational articles. The links to two articles are listed below. The first one is from the Mayo Clinic discussion lymphoma conditions, symptoms and how the disease is diagnosed. There are several pages so make sure you read to the bottom of each page, that will take you to a link to the next page.
The second article is from the Cleveland Clinic and has similar information about the B-cell lymphoma.
https://www.mayoclinic.org/diseases-conditions/lymphoma/symptoms-causes/syc-20352638
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https://my.clevelandclinic.org/health/diseases/22030-b-cell-lymphoma
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As I mentioned before there are several types of B-cell lymphomas so I wasn’t sure which group to connect you with. But felt the following might be a good launching pad for you.
Non Hodgkin's lymphoma
https://connect.mayoclinic.org/discussion/non-hodgkins-lymphoma-2c0eb7/
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https://connect.mayoclinic.org/discussion/would-like-to-know-anybody-with-splenic-b-cell-marginal-zone-lymphoma/
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Non Hodgkin’s Lymphoma https://connect.mayoclinic.org/discussion/non-hodgkins-lymphoma-watch-wait-approach/

May I ask how long ago you were diagnosed? Has your hematologist/oncologist discussed treatment for you if you’ve not already started?

My husband has a rare B-cell lymphoma, a lymphoproliferative disorder. Mayo's blood tests don't give much more information than this. He was treated with Rituxin, and has recovered.