Hi @steffiney, a bone marrow biopsy is a valuable tool for your hematologist to get a good look at the blood manufacturing center for you body.
The biopsy and examination of a core sample from the marrow and aspiration of peripheral blood can show whether your bone marrow is healthy and making normal amounts of blood cells. Doctors use these procedures to diagnose and monitor blood and marrow diseases.
Your doctor is trying to get the answers he needs to make a firm diagnosis for you. It can take a week or more to get a full report on all the in-depth testing of the samples.

You were recently diagnosed with MS as well?
We have a number of members who also have MS with numerous discussions throughout several support groups such as Autoimmune, Spine health, Brain & Nervous System. These can be found by typing in MS in the search bar at the top.
But here is one link for you to start with on MS and Mindfulness with an article by Doctor Amit Sood.
https://connect.mayoclinic.org/discussion/ms-mindfulness/
Are you currently in treatment for MS?