My viewpoint is this: it makes you stronger, not weaker, to open your mind fully to the idea of meds (and therapy, for that matter). It makes you a better parent if you have the insight and self-awareness to say, "I am not the parent I want to be. Maybe nothing will change this, but I am going to try.
With reservations, you'll listen to your brother's messages before you reluctantly decide to return his calls. In the next few minutes, your brother will remind you that your current state is just a moment, which you need to get through to have a chance to survive. Minute by minute and hour by hour, you'll get stronger. You still aren't sure if you want to live, but you'll begin to consider things beyond this moment.
Add a quick jog around the block, a bowl of oatmeal or a square of dark chocolate, and something you love to do, and you've taken a major leap towards a healthier heart. You've reduced your risk in a big way. Have a little faith in the goodness and power of your own life, and then get out there and live it.