Hi Tessa; You are in good company now. As a recent arrival to this site myself, I can assure you that the folks here listen respectfully and respond intelligently.
The wonder of it all is that we can find others who have had this rare form of cancer. I hope you will keep us informed of your journey to recovery. It's a road we all have intimate knowledge of...rocky bits included.
I agree with Mark that radiation is a beast...but it saves lives, so that's that. You will find a lot of tips for coping with side effects from the members here.
With your Mom's situation now you may be tempted to short change your own need for rest. Please don't!
Hopefully she can "partner" in your treatments..through prayer or just positive thoughts, and of course, her love for you must be a strong force in your life. Somehow a lot more seems tolerable when we feel loved.
Do you have any sibs who can give you help with your Mom?
Please know that you are not alone now.
Blessings to you,
Fran