its all part of the unpredictability of RA I'm afraid.......................so it does make planning ahead a bit of a trial! I tend to say yes I would LOVE to do this/go there/drive to etc etc, but always have to qualify it with "as long as I'm not too tired", so people are warned that I MAY not make keep to the plan....................its not ideal, but then neither is RA!!!!
I do hope they get your drugs sorted very soon so you can begin to feel better, take care, love from Lyliex
Always be aware that what you do might hurt others........and if it could, do nothing without careful consideration of the consequences