Thank you all for the great suggestions. I have bought the mother's milk tea and more milk plus supplement. I am also eating oatmeal each day. I rented a pump and will be doing that too.
My supply is really low but something is better than nothing. We have upped his formula and he seems to be perking up. I am going to get some sleep now that he is finally satisfied for once.
Thank you again.

PS: Grace has not had her easter basket yet. I better do that for her tomorrow. She has had a rough night.