In this movie a woman heals people by laying her hands on them. As I remember all the publicity and attention is too much so she disappears. I think the actress was dana delany. The healing takes all of her energy and she is very sick in the end.

I believe you're thinking of Resurrection (1980) and Ellen Burstyn.

There was 1999 TV remake with Dana Delaney
Resurrection (TV Movie 1999) - IMDb (http://www.imdb.com/title/tt0193462/)