love as mental illness

I am currently reading a book called,Love sick: love as mental illness.it centers around the idea that love (or love sickness) replicates psychological disorders and  even manifests in physical symptoms (i.e rapid pulse, excessive perspiration, dryness of the mouth). all of these topics confirm my suspicions. i have experienced symptoms of depression leading to suicidal ideation after feeling extreme desire for someone. i have also experienced symptoms of obsessive thought disorder. also, self delusion (he must like me, he said hi to me) which is a step away from hallucination. These revelations are extremely frightening. especially since i seem to have a propensity to form quick, intense passions (more than the average person). this serves to affirm the practicality of becoming a hermit. oh well. i don't know if i should try to fight these feelings or embrace them to the fullest.