Cooking/baking is always good .

It is good to read that SLE has been ruled out in the context of your elevated ANA (in my day job I am, among other things, a non-clinical immunologist).

Elevated ANA happens in about 90% of people with scleroderma. This Aussie link might help you in this context; http://www.nevdgp.org.au/info/std_mi...CLERODERMA.htm .

I reckon that your GP is doing a great job.