Sir Paul McCartney's estranged wife Heather Mills is "worn down" by the couple's split and is cancelling charity commitments so she can rest. The former model was due at the launch of a vegetarian campaign against milk yesterday (22MAY06) but pulled out, preferring to stay in Slovenia, where she is lying low following news of her separation from the former beatle. Friend and colleague JULIET GELLATLEY says, "She is too ill. We heard from her today. She just doesn't feel very well. "She had convinced herself she could do the launch this week, because she supports the aims of the campaign. But she feels so worn down." The White Lies campaign questions the goodness of dairy products.