I have this feeling like i'm trapped?!

Lately I've been having like a weird nagging feeling for like a week!. It kind of comes and goes but it's this peculiar feeling that i'm trapped!. I've only gotten this feeling a few times in my life before!. For example, when I really felt uncomfortable and wanted to get out of a situation!. Like awhile back me and some friend were out and about past curfew and a cop was following us and we were tring to hide because we didn't wanna get caught!. Pretty much I was just feeling uneasy and wished I wasn't in that situation!. Like I just really didn't want to be there!. The other day this feeling hit me really bad when I was taking a shower and it was so !.!. I don't know how to explain!. I just felt trapped and I had no reason to feel this way out of nowhere!. Then later on I was sitting in my living room and kept glancing at my door, feeling trapped again, like I wanted to just open it and run out of the house!. But obviously I wasn't going to do that but it was just like a nagging feeling!. I told my mom about it and she said it sounded like anxiety but I'm not sure that's what it is!. SO HERE'S THE QUESTION : Does this feeling have a name for it, and why it could be caused!? It's like I want to shake the feeling off but I can't!.Www@Answer-Health@Com

---

---