You can give name to your feelings for another person by checking that whether you posses the following symptoms. If you do then it is love.

You feel that world has ended, the life is worthless; every heartbeat seems to be liability, whenever that person is not with you. When all the time you keep on remembering the delightful moments you shared with that person. The time you spent in the arms of that person becomes most blissful and heavenly for you than any other thing in the universe. Your new romantic partner makes you forget about the good or bad memories associated with your previous partner. That person shows concern and interest in you and always tries to make you happy. Some characteristics like politeness, style, the way that person treats other etc, impress and attracts you. Both of you are loyal to each other and try to share special moments together instead of sharing them with friends. There are many common things among you and both of you have similar ideas and perspectives about different things. But still it is obvious that there are some moments when you don’t agree with each other. At that time that person tries to reach a compromise and tries to strengthen the relationship. If you notice such things in your relationship then yes you are in love.