Peach,
You should not lose weight because of your hand.
Your grocery store should provide assistance with shopping.
In California some supermarkets have their box people go with customers to assist with picking stuff off the shelfs etc.
You can always order groceries, and Rx on line. and deliver to your house.
If you need help, you need it now.
Do not wait for the cov19 to resolve.
Funcountess