I was diagnosed in mid May as well and started on 15mg of prednisone on 1 June. I initially did a quick taper from 40-10mg by 5mg a day ordered by my GP. Worked great until I got to 10mg and then PMR came raging back. Rheumatologist had me taper by 2.5mg per month so I am currently on 5mg. Taper will now go to .5mg a month as my adrenals should start kicking in. Anytime I tried to taper quickly I got punished so tapering does take some patience but also experimentation as we are all different.

John's questions are spot on so I would hit all of them.

In addition, I would ask about adrenal health and a quicker taper to 5mg since you have been on prednisone for 6 months already. My college roommate is an endocrinologist with 30 years of a treatment/research focus on adrenal/pituitary function. He stresses getting to below 5 as quickly as your PMR symptoms allow. Reason is that the longer your adrenal glands are suppressed by a suprapharmacologic dose of prednisone, the longer they take to recover. Most people take a month of recovery for each month of >5mg. So right now I will likely be on a 6 month slow taper from 5 to 0. Also, the longer your adrenals are suppressed, the higher the risk they may not recover.

Good luck!