Depressed and unsatisfied, not sure husband notices

Samantha
For awhile I've been feeling depressed. I'm good at hiding it though even to the point where I don't notice it unless I'm all alone. I've tried talking to my husband about some things that are upsetting me but...I'm not sure he gets how upset I am. I love him to pieces but he's never been good for serious talks. It never feels like the right time to really sit him down. I'm scared though that my emotions will overwhelm me though and I'll just go into hysteric sobs. My main fear is to crack in front of my son. My mom has bipolar, to the point that she's been in the pysch ward twice in the past few months, I don't want my son to ever see me in the way I see my mom. I guess really I just needed to get these worries out to someone.