Hun, go to Big W and grab yourself a pair of 1 or 2kg weights to help tone your arms up - I got mine for $10 each and they're really low-intensity and easy to do, even while sitting on the couch watching TV My arms haven't looked this decent in years. Not sure about other exercise, but as far as arm work goes, you should be fine to keep going with low weights as there's not a lot of strain put on you, kwim?