Ahh, when parents react badly. I've been there. I was seeing a pdoc at 18 for suicidal feelings and impulses. The pdoc kept trying to talk me into telling my parents. I kept saying no way, they won't be understanding; when they hear someone they know is seeing a pdoc, they treat it like a shameful thing. She didn't believe me that they would do the same thing to me. I finally told my mom-- and totally regretted it. I didn't even tell her I was suicidal, just the I was seeing a pdoc for depression. She totally freaked out about it, getting all upset, acting like I was just doing it as a personal insult to her or something and just giving me another burden to carry, instead of the support I needed. I told the pdoc that it was pretty much what I expected and she was wrong to push me into doing it.
When I ended up in the hospital for a suicide attempt at 19, I was out on my own already and would have done everything I could to keep them from finding out. Unfortunately, I was unconscious for a long time and in the ICU even longer and they started looking for me, calling hospitals, when I wasn't returning phone calls. Then they came to the hospital. My mom gave me a huge guilt trip about how I was upsetting her so much they might have to hospitalize her too, my dad got hostile when I tried to give him some information on depression, telling me he didn't want to hear anything about it and was THIS how I was going to spend the rest of my life? Nice. Really nice. I told the hospital I would not accept them as visitors anymore, to not let them in to see me.