Hi @lindapc, my PMR is currently in remission but I started on 20 mg of prednisone both times. The first occurrence took me 3 years to taper off and the last 6 months or so was going between 1 mg and 1/2 mg until I was finally able to stop taking it with a minimum amount of discomfort. I used a pill cutter to split the 1 mg tablets. I gained a lot of weight the first time around. Not sure exactly how much but it was 50 lbs or more. The second time around I was more conscious of the problem of gaining weight and was able to keep it between 5 and 10 lbs. There are other sites with information on how to control the weight gain but here are a couple that do a good job of summarizing. Exercise really helps but I believe the key is to not overdo the exercise to where it causes your pain to be worse.

ILD Nutrition Manual: Prednisone and Weight Gain
-- https://www.ucsfhealth.org/education/ild_nutrition_manual/prednisone_and_weight_gain/
Why do people gain weight on Prednisone?
-- https://www.helpfightra.org/weight-gain-on-prednisone/

Here's some ideas to help with staying more active.

3 Strategies for Coping with Polymyalgia Rheumatica (PMR)
-- https://www.arthritis-health.com/blog/3-strategies-coping-polymyalgia-rheumatica-pmr