Probably not what you need to be worrying about now, but it is really important to have a look at the conditions attached to your income insurance--unless you opted out, you will probably have some through your super. It's a bugger everything has blown up while you are thinking of changing jobs, but then there really is never a good time or this stuff.
If this turns into the full Monty (let's hope it doesn't) and you are off work for an extended period of time, that insurance can make a world of difference so it pays to make sure you are aware of the rules when you start treatment. Sorry, I know that sounds a bit cold, but as someone who was caught out I can tell you it's worth taking care of the practical aspects early as it makes things much easier later. Mxx