There is no parameter to measure the love and know are you fall in love or not. This is a great feeling when you care about someones and worried about that lady or guys except for family. Cause everyone cares and worried about his/her family. I think this is the first point which tells you that you are falling in love with that person.

brett42, Honestly Speaking, I am speechless on this topic but I have not fallen in love in my life till yet. I have only seen this thing in movies and serials. I think it could be really a nice feeling to fall in love because we can feel that person in front of eyes all the times. It is the world of imagination as the movies tell us. I am also waiting for the time when I will be in love from the depth of my heart with someone to experience this beautiful feeling. After that, I will share my experience with you guys here.