What do I say?

I have this social awkwardness problem. I am a social idiot. I don't think I generally do well with people. I have "friends" at work, but no one I really see socially from there. I have one or two people who I see every once in a while and a few who I instant message. I'm just not that good with people.

When I get like this, back on the verge of depression, I am SO much worse with people. How long can I use the excuse of being tired/sick for? I've only known these people since late August-- they've never seen anything other than happy me. I've been pretty happy for over three years, which is a record for me. I've forgotten how I deal with people when I'm like this.

Do I hide in my classroom all the time? Under the blanket of working, of course, but that will get suspicious rather quickly.

Do I just pretend that I am happy? That is probably the best option, but I don't know that I can yet. Maybe I just need to try.

How do I answer questions that people ask me about what is wrong?

I am a crier. I cry at EVERYTHING. I hate it! I can't hide when I am in this frame of mind. Ugh! I think hiding might be my best option for now. What do you think?