"hi, i have been taking 5mg escitalopram for two months,my anxiety is lower, but i have headfog, racing thoughts and i can&#039;t concentrate. also i had insomnia.  i don&#039;t know whether i should  keep taking it because i am  feeling that is doesn&#039;t work for me. my doctor says that works and  i have to be positive and give it a time.  i am confused and disappointed. i am in college and can&#039;t study for exams,  that makes me more negative and depressed :/"