Hello @123suew, I would like to welcome you to Connect and thank you for sending me a private message. I thought I would answer your message in this discussion - "Polymyalgia Rheumatica (PMR): Meet others & Share Your Story" so that you can meet other members who also have PMR and you can learn some of the tips that have been shared. If you click the VIEW & REPLY button at the bottom of the email notification for this post, it will take you to this post in the discussion.

You mentioned you have been diagnosed with PMR and have been on prednisone 20 mg for 4 days. You also mentioned that since starting the prednisone you have little pain but you still have fatigue and you can't walk far with out being out of breath and weak. You are wondering if this is normal. In my 2 occurrences of PMR I started at 20 mg of prednisone and it did relieve my pain but I still had some fatigue. I had to force myself to keep moving to help with the stiffness. I think it was worse for me during my first time with PMR because I was a lot heavier then and I think that added to the fatigue.

Fatigue or low energy level can be a side effect of the prednisone for some people. The information on Mayo Clinic's website for the drug says if you have more than one of these symptoms you should discuss it with your doctor / rheumatologist.
-- https://www.mayoclinic.org/drugs-supplements/prednisone-oral-route/side-effects/drg-20075269?p=1

Have you shared your fatigue and shortness of breath symptoms with your doctor or rheumatologist?