Good to hear your mum is doing well Wayne. From what little I know about the treatment, having had a girlfriend and an ex-Regiment friend undergo the same, weight loss is not unusual, but the Medics do like to keep an eye on it. The new stuff I now take causes similar effects - I need to buy some new trousers, as all the current ones keep falling down - not a pretty sight!!
I hope the improvement continues, and pass on my best wishes mate.