@Merry Andrew,
I just searched the Shaw's website and find nothing that mentions anything about doing deliveries.
I did, however, find another grocery in your area that not only does deliveries but also has online shopping as CJ suggests. The delivery charge is $9.95 and they deliver in your area according to their delivery map and zipcode list.
Here's their website.
http://shop.rochebros.com/
This way you'll have access to the nutritional food you need and Sglass will feel relieved to know you have a handy source for it. The best thing is you'll be able to maintain your own stubborn streak of independence so many of my Bostonian relatives so heartily display.
If you need any help figuring out their website and the online ordering process, just ask. It is how I've done all my own grocery shopping for the last five years. The service was especially appreciated during my own illness and recovery from surgery a couple years ago when I was too weak to navigate supermarket aisles.