Help me

I've been feeling really down lately - like sad. I barely eat that much anymore, I want to cry and I just want to lay in bed and watch tv, I try to cover it up when I'm around people and when I'm at work and then when I get home it's like it consumes me. I'm starting to worry if this is the beginning of depression - I want to shake this feeling so bad and I can't seem too. I want to tell my bf but I don't want to bring him down. I'm scared and I need help on how to get rid of this feeling 😔