On Monday I woke up feeling fine, my normal routines were interrupted by the kitchen fitters. As the day wore on I got a bad crushing headache that nothing would shift, as if I had been hit in the back of the head with a cricket bat, then a cap like headache was added to that and pain began to creep up my legs. I went upstairs in desperation to get something for it and to my horror realised that I had forgotten to take Prednisalone that day. Wow I remember now that it is a good drug. It was 9.30 at night, I usually take it early with breakfast in the morning. I took my 10mgs knowing that I probably wouldn't sleep. The pain went within the hour and I did sleep after feeling nightmarishly on the verge of a panic attack as well as shapes blooming before my eyes in the dark, like a 70's disco light show, without the colour. I am puzzled by that reaction and by feeling well on no Pred for hours, then the headache. I am reducing, is it good that I felt fine for about 8 hours on no Pred.? Is what I am experiencing steroid withdrawal rather than PMR?