Hey @Blossom1961,
Just do what you have to do. Rest when you need to, don't if you don't. The mental exhaustion from what you have been through is unexpected. You think treatment is done, time to get better and back to normal right?
I lived on Berocca's and caffeine for about a month afterwards LOL (Still do some days) Then it started to get better. I was feeling pretty good by the time I finished rads so that was about 4 months after my last infusion.
But different treatments probably take different times to recover from and the chemo hangover stays around for a while in varying degrees of crapiness.
xoxoxoxo