Deutsch:
los | Es ist etwas los. | Hier ist viel los. | Hier ist immer etwas los. | Was ist hier los? | Was ist denn mit dir los?
Englisch:
| Something is going on.; There's something going on.; There's something happening. | There is a lot going on here. | There is always sth. going on here. | What's going on here?; What's the matter here? | What's wrong with you?; What's up with you?; What'S the matter with you?