Is it normal to feel emotions really intensely and be really effected by them? Like sometimes I feel like i’m suffocation even ever i’m nervous about something, my heart racing and feel kind of out of control. I usually don’t have a good reason about being nervous , it’s usually about small things . But it still really effects me, and i don’t know what to do about it. I often have this sick feeling, like something bad is going to happen. Or whenever i smell the fresh winter air i get sick to my stomach, somewhat in a good way. I also feel intense when i’m happy , i feel like my heart is bursting sometimes . 
Also, i don’t usually get angry . But not so long ago i had this incident with a friend . What basically happened is that i felt like they were trying to avoid me purposely, and for some reason this really ticked me off, it flipped a switch in my brain. i ran after them , and pushed them . not so hard that they fell, but still pretty hard . Then i went on to call them a female dog. whoops …..
some other people from our friend group were there and they all found it funny that i did that. i feel shit about it. I don’t know what caused me to react that way.

is it normal to have problems like this with emotions ?