There's little to indicate what period of time elapsed between Tony's Communion and her death.
Indeed. It were more likely months, maybe even a year or so. But everyone seems to have his own interpretation.
The Communion would have been held in the Spring, probably April or May. Later Michael returned from a trip and spoke with her. There was considerable snow on the ground. The weather appeard fine when she died. I suggest a year transpired. Also, seeming in good health and being in good health can be two distinctly different things.
According to the final draft of the official screenplay the communion was in Autumn. The scenes were shot in early October which was about the same time.
