Hi I'm going through the same ,  try and get your mum To do some relaxing listening to some meditation it helps. The restless ness should pass in a couple of days. The heaviness usually lasts a couple of days and she'll come through it. 

I found when I'm heavy o just want to lie down as it makes me more comfortable.  I do hope this helps. 

Thank you - all these feelings are new to her so happy to try anything that may help

This is just mysecond chemo so hopefully knowing the effects helps us through the next ones