I've found an unusual article about Extreme Tiredness while i was looking for anxiety help i read somewhere that anxiety can cause fatigue so i found this interesting article to get relief from fatigue, anyway, my question is about to know can anxiety really cause the tiredness or fatigue?

I am too much worried about everything around me related to me, what i do, what i do not for everything even more the worries (i should say anxiety) are not going away while sleeping in my dreams. Scared from too much worry someday it may be harmful for me.