Just checking to see if anybody has the same side-effect rhythm that I do with the Fast-Pro. I get the shot the last Thursday of the month. Thursday I feel fine. Friday I feel okay. By Friday evening I feel a little funky. Saturday morning I feel like a can of busted biscuits, headache, fatigue. Sunday the same. By Monday I am back to my normal self. (as normal as anyone on chemo can be). Does anyone else have this delayed reaction.