So I went to the skate park with my cousin tonight and I didn't feel too bad when I was with my cousin just talking to him. But on these guys came to the skate park that my cousin knew and when they were talking to my cousin I hardly said one word, it was as if being there changes all my senses and I felt like I couldn't concentrate and felt clumsy, but then when they went away and I was just talking to my cousin again I didn't feel anxious speaking to him at all. I seem to get these feelings all the time with most people and it has been making me feel so depressed that I have been getting suicidal thoughts, because I feel like I can't live my life feeling so anxious and confused anytime I am talking to people. What would be causing me to feel like this?