Should I be upset?

Amanda

At my job people make a big deal out of other coworkers birthdays. Desks are decorated and sometimes a card or cookies are passed around. Last year they forgot my birthday, or at least didn't decorate my desk. I didn't think much of it. A few months later no one showed up to my baby shower and the next day everyone was at my other coworker's gender reveal. It hurt but I moved on. I have been really nice to everyone. I've been getting along with everyone and help all the time. For other people's baby showers at work and birthdays I participate and organize like crazy. I thought for sure this year my desk would be decorated for my birthday on November 21st. It wasn't. I thought ok it's just because it is close to the holiday and they forgot. But the very next day they decorated another girl's desk for. her birthday. Then come Monday everyone forgo the new girl's birthday and her desk went undecorated. I was like ok at least it isn't just me. Then Tuesday an email was sent out saying we forgot her birthday, let's decorate her desk tomorrow and get her cookies and a card. It's to the point where I am having a hard time letting this go. Why are my events ignored when I do so much for other people's events? I feel like people like me and I honestly feel like a good coworker and teammate. Should I feel upset? I asked one of my closer coworkers if anyone is mad at me or if people don't like me. She said no. I just don't understand. I have had depression for 13 years and this is really triggering it. I don't know what to do.