Have your doctors checked your platelets to see if they are low? This is from the Mayo Clinic:

"Myelofibrosis causes extensive scarring in your bone marrow, leading to severe anemia that can cause weakness and fatigue. Bone marrow scarring can also cause you to have a low number of blood-clotting cells called platelets"
https://www.mayoclinic.org/diseases-conditions/myelofibrosis/symptoms-causes/syc-20355057#:~:text=Myelofibrosis%20causes%20extensive%20scarring%20in,often%20causes%20an%20enlarged%20spleen.
This is from the Ironwood Cancer & Research Center:

Boost Your Platelets With Nutrition
"Your platelet count determines whether you experience symptoms."
https://www.ironwoodcrc.com/boost-your-platelets-with-nutrition/#:~:text=Almond%20milk%20and%20Soya%20milk,production%20of%20cells%20like%20platelets.
Eat well and rest when needed. Many hugs.