There is common factor in some women, But you can make your self relaxed and try to make interest in sex by watching movies, romantic movies and also try to read arousing literature which can make you aroused and you can get interest while intercourse.
Also one more thing that you need counselling
for your problem, there is not a serious problem but it makes your feeling more better.
Also discuss with your husband and try different types of role play and foreplay to make sexual life more n more enjoying.
you can get online counselling to solve your this problem, for that you can contact me via mail or chat..
there is no need of any medication..
Dr. Nikul Patel