When DS was diagnosed, I had difficulty talking about it because we were still grieving and I knew I would cry, could hardly speak. I'd hate that look of pity people would give me. Other times, I was just darned tired of explaining his symptoms to people, tired of explaining he wasn't going to outgrow this, that there was no such thing as a mild case... Felt like I was constantly repeating myself, reliving things over and over -- and sometimes it was the same people asking the same questions, as if they kept asking, maybe my answer would change.
And it depended upon who I'd be talking to. Some people were genuinely interested, others would take it upon themselves to research all things CF -- sometimes outdated info and every time I'd talk to them it'd be a "new" fact, treatment option... And there are some people whom I still avoid talking to because they seem to get attention out of fact that their relative has a disease -- I feel that it's all about them getting attention. Or better yet -- we had family and coworkers who seemed to not believe the diagnosis -- as if we were faking it and we'd get the "he doesn't look sick comments". I'm not saying that you are doing any of these things, but there maybe others within your family who aren't as supportive. I know there've been other people on this site who've had similar issues with friends and family.
In our case, I had a normal pregnancy, and we expected to take out child home from the hospital after a few days. I was worried he'd maybe be colicky, that he'd have ear infections like my husband did as a child and might have to tubes. Surprise! There's a lot of information that's been thrown at you and your family and it's a bit overwhelming. This is a lifestyle change. When CPT was first started I thought -- omigosh we have to do this 3-4 times a day FOREVER! Other side of the coin -- we do all this stuff because we want him to lead a normal life.