Mental stress?

Hi,

I'm not quite sure where to begin. Over the past few weeks, I've noticed significant changes in myself.

I talk much less, am hardly happy anymore and am afraid to come to work.

No matter what I do, people complain and gossip behind my back. Some nice colleagues let me know what they've been saying about me.

The whole thing gives me the strong feeling of not being welcome.

Despite many conversations, things didn't get better, and even those who talk about me noticed changes. I'm not usually like that.

All this stress, this fear and the feeling of not being welcome is killing me.

A few days ago, I also started smoking, even though I never wanted to. I'm afraid of hurting myself again.

Is this due to my psyche or am I imagining it all?