I'm having my second stem cell transplant at the beginning of March. It was meant to be this week, but they didn't manage to collect enough stem cells. I was given GCSF for 4 days and then a Plerixafor injection the night before the second day of collection. I was on Carfilzomib with 20mg of Dex once a week prior to this. It's only been two weeks without Dex but I feel so low. Does anyone know if this can be withdrawal effects or a response to the Plerixafor? I'm normally a very optimistic person and don't really get these feelings of sadness. Thanks.