@Brenda5 we are so complex. It is really hard to workout the effect of treatment long after it has finished. I probably agree with your friend that hormones are playing a big part in what is happening to you. In the scheme of things no harm done. You probably felt rotten but you handled it.
I am constantly overtaxing myself and then need to rest or get cranky or both.I do not know at this stage what I can and cant do. So maybe you have been doing too much without realizing it. Who knows?
Nothing surprises me in the cancer journey anymore. keep well.