Although love is often associated with warm and fuzzy feelings, it can also be a huge source of stress. Being in love often causes your brain to release the stress hormone cortisol, which can lead you to feel the heat.

Why does love cause anxiety?

A sudden rise in dopamine (which causes feelings of exhilaration and anxiety) and an associated increase in cortisol and norepinephrine (the two main stress hormones) causes a sharp drop in serotonin (a mood stabilizer), says Clair Burley, Ph. D., a UK-based clinical psychologist.

Can falling in love make you feel depressed?

Limerence: An Addiction to Love For some people, lovesickness goes beyond butterflies: It may also induce physical effects, such as heart palpitations, shortness of breath, stomach pain, loss of sleep, and depression, all which may persist and prevent you from functioning normally.