Hi @david09 and welcome Mayo Connect. There are quite a few members in the forum who have also been diagnosed with CLL, (Chronic Lymphocytic Leukemia).

I posted a link below that would be a great discussion group for you to join to meet with other members @kegraves @carl50 @rlybolt @sandiegostu @bochos @pinkpocketbooks @normahorn, just to name a few, who also have CLL in various stages.

~CLL leukemia: Just diagnosed, what can be done?
https://connect.mayoclinic.org/discussion/cll-leukemia/
CLL is generally a slowly developing type of leukemia and patients can go for years without requiring treatment. If treatment is needed there are often several options available.

Since blood forms in the bone marrow, your doctor has requested a bone marrow biopsy which goes right to the heart of the blood manufacturing site. There are a number of tests that are run from these samples so it can take a few weeks before all of the results have been evaluated.
There are a number of helpful articles from credible sources which will help educate you a little to the new diagnosis.
This from Mayo:
https://www.mayoclinic.org/diseases-conditions/chronic-lymphocytic-leukemia/symptoms-causes/syc-20352428
From Verywellhealth.com https://www.healthline.com/health/chronic-lymphocytic-leukemia-cll

David, were you having symptoms that led to the discovery or was this through bloodwork from a routine physical?