@Brenleigh welcome to the forum! I just put up a post earlier on fatigue - it hits us all at varying stages and more often than not more than once as we cope with diagnosis, surgery, treatment and those side effects! There is a information sheet on the website for fatigue, here it is! Hope it helps
https://www.bcna.org.au/health-wellbeing/physical-wellbeing/fatigue/Hope you settle into the forum and the website as there is a wealth of experience and information
Take care and good luck with your treatment and management thereof! xx