To be Expected?

I should of stayed with my mother last night.  She seemed okay after her treatment yesterday and was just tired.  So, I stayed until she went to bed and left.  This morning, first thing, I called and no answer.... tried again, no answer. A little fear sunk in and I was dressed and out the door in five minutes.  I got here and she was completely disoriented and just laying on her bed.  I felt so horrible.  She was feeling so sick and completely wiped out.  I called my brother, Mike, and he came in so I could run to my office and get a couple things done. She's running a low grade temp, which is  normal and also felt nauseous.  I gave her the anti nausea meds and it helped.  She's been sleeping on and off since then.  Obviously, she cannot be left alone and hopefully, this is just today from treatment yesterday.  She handled the treatment really well while it was being administered but I guess I should of known better but then again, this is uncharted territory for us all.  I hope tomorrow is better..