How long have you worked there mate? When you say you're not in any circles because that's not who you are as a person, do you mean you don't feel you have anything in common with them?
I sounds like you put a lot of pressure on yourself to make friends with them. How is your social life outside of work?
Been there about 7 months. When I say I'm not in any circles I mean I'm not one who would purposely leave someone else out of something when I see them on their own whilst I'm part of a group, I would not close rank on someone like that unless I had a reason to seriously dislike them.
If me and a gang of my mates were sat shooting the breeze together and I saw a relatively new guy on his own I would make an effort to include him, to integrate him into the conversation and not make him feel like he's not wanted. If it was rebuffed then fair enough, some people are natural loners and prefer it that way. I don't feel like I am though and I certainly don't mean to give off that impression but perhaps I unknowingly do. Fact is though I have never once felt welcomed and a series of small incidents has only backed up that belief (the night out incident most notably).
My social outside of work is not great admittedly. I have one close friend, someone I speak too every day and make plans with often (and also the one who came to help me during my breakdown last week). I have handful other friends who I talk too and go out with but we don't talk everyday, sometimes not for weeks, we're a bit on and off. It means I often feel bored during the evenings so I've started going the gym a lot more. If my social life was better then obviously I wouldn't let something like this bother me so much but I admit it isn't and I don't know any way to make it better in the immediate future. You can't seek out friendships you just have to wait for them to come along really.
I would agree I put pressure on myself to try and be liked but doesn't everyone? My last job was such a nightmare I went into this one determined to make a good impression from the start. I feel like I wasn't met halfway though and it's really P'd me off, sometimes I let it bubble to the surface of my mind like I have today. I find myself thinking "look at that lot acting like a gang of kids at the back of the bus, as if they're too cool for everyone else". My paranoia has gotten so bad it's becoming unbearable, I actually convince myself they're talking about me a lot of the time during their sit offs.
I've been back on 10mg Citalopram for about a week, it probably hasn't kicked in yet. I hope it does, I've had enough of these feelings.