Hi Rachel, Thats a really good question. I dont really think anyone can or will be able to tell you what brings on or back a relapse or excaberation. They are the same thing....If you were successful with steroids, thats a great thing, because not everyone has success with them. I myself, usually get about 50% success; and sometimes that IS good enough!
There really is NO progression to these excaberations. You might have brought back some symtpoms due to the stress of moving, and of course going back to work; however if you had stayed home in bed those same days, theres no saying that they wouldnt have come back anyway. In my experience with steroids, they generally HELP while they are being given, and then I feel AWFUL for a few days while my body gets used to coming off of them, and THEN I start to feel alittle bit better again. You might be going thru the withdraw period and experiencing coming off the steroids...which means that once your body gets used to THIS feeling, it will start to level out and youll start to feel better yet again!
Relapses can hit at the strangest times. Stress of course is documented to bring them on, as are changes in the weather, especially when it gets hotter. Humidity can make you feel extreme fatigue, as can being dehydrated. (SO always keep water handy). It sounds like you are going thru what many of us are dealing with this time of year, which is the overall yucky feeling!

SO, hang in there and keep us posted as to how you feel in another day or two. Steroids are pretty strong stuff; they can really knock the socks off of you for a few days...glad to hear that they helped you though- that is really positive.
Nikki