Does anyone else get extreme fatigue spells after breast cancer treatment?

I finished chemo for triple positive breast cancer on March 26th. Then finished radiation April 21st. I am now getting Ogivri every 21 days along with Letrozole daily. I am always tired, but last week we had hurricane speed wind storms in Kansas and were without power for a week which was exhausting in itself. This week I have been overly tired and slept for 36 hours. Does anyone else experience these kind of spells?