Well, I know all people are very different, but let me add something from the opposite side.

I had oncological desease and I stopped talking with almost all of my friend or reduced them to minimum, because I hated that glance with a pity, like they were trying to say good buy to me, and felt sorry for me. And I didn't have any intention to die, especcially that I had very big statistical chances (95% in particular and I said it to all of them, but they still looked at me with that terrible glance).
So I was restricted to communicating just with others in the hospital. Because there I felt normal, and it was just a period when I need to take medicines and treatment, and it was finished like any other temporary problem.