It seems from the history that you are having headache above eyebrows and forehead and it is not responding to paracetamol
and it is increasing on continues use of laptop and associated with difficulty to focus.
Hence this looks like associated with eye problem like refractive error
. These symptoms can be asthenopic symptoms associated with refractive error.
Hence I advice you to consult your eye doctor for examination to look for refractive error and treatment accordingly.