@viking1 I got the post Steroid slump each chemo round. About a day after stopping them my mood dropped like a stone. It was worst the first time, once I realised what was happening it was much easier to deal with. I would schedule something pleasant to deal with the two days it affected me, nice programs on TV, some nice snacks, warm blankets etc. I knew not to try to do anything challenging those days.
It would be nice if the Oncologist or chemo nurses warned you that it can happen, there was nothing mentioned about it in any of the side effects sheets I received.