Hi little carrot!
This could actually be broken down into two separate questions:
1. Have you ever been in love?
To be in love is to feel a warm glow and happiness whenever you think of the other person, to care about their well-being, and to be very happy that they are a part of your life!
2. Have you ever fallen in love?
To fall in love is to hardly be able to think about anything other than that special person! They have become more important to you than anything else in life, and you want to spend all your time being with them, or at least thinking about them. Often you lose both your appetite for food and ability to sleep. The feelings that go with this are a diabolical combination of ecstasy and torture!
I have felt both of these emotions at different times in my life...but please don't ask me to choose which is better!!!