cyndy’s answer about keeping a journal was a good idea. What I’ve found that has helped most with self-awareness or better understanding myself is meditation. Most people as far as I can tell, myself included, scoff a little at the idea of meditation initially because it seems like such a heavy investment of time, when really it’s not as much of a commitment as it seems.
Try sitting with your eyes closed for a few minutes each day, either in the morning or the evening, and focus on these feelings of distress or unease that you’re experiencing. Don’t kick yourself if you find it hard to sit for longer than a minute or two—I try for about five, which has become increasingly easier with time—also, there’s the misconception about meditation that a clearing of the mind must be achieved for it to have been “successful.” There’s no success or failure in meditation. The only failure is if you don’t at least give it a try, there’s no harm in it, it could turn out to be very valuable.
Focus on your concerns and try to understand them in a complete yet detached way: why did you feel uncomfortable then, who or what was around you, what had you done earlier in the day, what brought you to this point, did you want to be there, what would have rather been doing. Instead of neurotically obsessing over these things, give each of them a bit of your time in quiet reflection. When I say detached, I mean in a non-judgmental light as we quite readily, almost without being aware of it, critique our own actions in a somewhat superficial way, in that because our self-analysis tends to be nearly automatic we don’t fully understand what we’re examining. The idea with quiet reflection is to take each thought, worry, and concern equally, address it, attempt to understand them a little bit more and move on. Thoughts and emotions are immaterial and therefore be the object of our attention for however brief or long we choose.
We have far too much time these days to spend “over-thinking” things; use your spare time—five or less minutes at a time—to attempt to gain a more clear understanding of yourself and your motivations, the choices you make and don’t make, it’s not as hard as it might seem, don’t chastise yourself if you’re not able to focus clearly on this or that. Thoughts and feelings come and go, there’s no point in fighting them.
I hope some of this helps, I realise this became a wee long winded.