I always have unexplained anxiety,am I ill?

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I don't want to waste any time ,when I watched TV or paly some phone games for 2 hours,I feel guilty,I think I spend too much time on nothing,before any rest,I must do somethings that I think it's meaningful and useful,like learn some English,read some books,paly bastetball and so on,I will be dysphoric when I am in the crowd or in a room.I don't like talking sometimes.I will put everything in my heart, sometimes it's really uncomfortable . Am I suffering from anxiety disorders?