Someone told me I'm in love

The blood is circulating inside my tiny veins too fast; i feel those strange impulses pumping through my muscles; feeling the pressure inside my head, my hands, my toes, it goes around my organs without me controlling this weird process. the heart beat increases, forcing me to shake, making my movements involuntary.

thinking can be unconscious, trying to concentrate on one subject but switching to a completely different one. under control of my instincts, I feel nervous. screaming out loud, letting the oxygen in and starting to laugh the way i never did before, gives me a special kind of enjoyment. lips of mine are moving towards my ears; i like it. the pupils of my eyes are growing; covering the green-blueish parts, the black space takes over. the tones of pink and red attack my cheeks; unwanted temperature rises. its not in my power to pause the mode.

is that a type of some disease? no, i don't think I'm ill. I'm happy; i feel it. someone told me I'm in love. four letters, one syllable and a various range of meanings. where is it? am i in it?