Yesterday, I looked at my plant and noticed that a couple of leaves had turned brown, so I opened the bag and checked to see if there were more dying leaves. I didn't find any, instead to my delight I saw that at the top of the plant there were two perfectly formed flowers! I looked carefully, and found there were actually a dozen or so tiny buds growing on the branches, and a few small red leaves, which I think are newly formed. I took a cotton swab and brushed against both of the flowers to hopefully polinate them.
I think my plant has finally overcome its transplant shock. I just wish I could find what I was doing differently, so I can keep it that way.