Weird fear/anxiety over listenig and writing.

I have this problem from last 5 to 6 months, like i keep thinking and analayzing on weird stuff, like i have question which are continuously pop in my mind.for example, recently , i have that weird question ,that how we can exactly know what to write, (i mean i am talking about spellings,)like how we exactly knows that in spelling elephent the e is comes after h , how our hand writes it , without even thinking about it.so this is not real problem , but whenever i try to write something , this weird question pops in mind , and i keep analysing about it, i can't even write properly for long time because of this, and because of this , the fear of writing is stay in mind, same with the listening to song, like i had question that r we more focus on lyrics or background music, so whenever i try listen music , i try to figure out am i more focus on background tune or Lyrics, this cause me big fear of listening to music , and same with many other questions , like how we laugh? and why we say sorry and why we say this? and that , this is runing my life , what should i do? any one has a same problem? please suggest