"I started long term prednisone shortly after my diagnosis of PMR."
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I should say that I started prednisone shortly after my diagnosis of PMR but my symptoms of PMR got a head start by about 6 months. My symptoms of peripheral neuralgia started about 6 months after prednisone was started.

Peripheral neuralgia is listed and one of the potential side effects from long term Prednisone use in the following link. I have to wonder what adverse effects prednisone doesn't cause.
https://www.verywellhealth.com/what-are-prednisone-side-effects-1941763
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The link below says this:

"Generally, PMR is not associated with serious complications; however, patients treated with corticosteroids are at risk for long-term complications of corticosteroid therapy."
https://www.uspharmacist.com/article/polymyalgia-rheumatica-a-severe-self-limiting-disease