Hi,
Unfortunately tiredness, fatigue and feeling weak can be side effects of having the chemo. It can vary in the degree with each person and with each round of chemo.
Your Mother may need to supplement her diet if she is not eating well during this time but before she takes any vitimans or other types of supplements, it would be best to clear them with her oncologist.
I hope she starts to feel better soon.....Janet
Yes you can blame it on the chemo as well as many others. If the weakness doesn't improve call her Onc she might need a red cell booster. Good luck~~~Joanne