I have reduced to 17mg prednisolone from 30 and have had no problems, except the usual sleeplessness, which is lessening, but recently I have had on several occasions a sudden sense of heaviness in both arms followed by a feeling of intense weakness which means I have to sit down wherever I am - once on a public bench in the pouring rain! I do also suffer from SVT and don't know whether this is related or is to do with PMR/GCA. There has been no rapid heart rate or dizziness which are usual in my SVT episodes. My GP is inaccessible, offering telephone only appointments except in dire emergencies and I am due to speak to him on Friday about the results of a 7-day heart monitor and I will raise this question but would really welcome any advice from you as you are all so helpful. Thanks.