How many times in your life have you heard someone say, "Don't be so over-sensitive"?
Maybe they said it another way -- like, "Get a thicker skin," or "Don't be such a cry baby."
You feel things deeply, and you also feel deeply misunderstood. Most people around you don't seem to share your sensitive nature, and they let you know your sensitivities are not desirable.
You easily sense the mood in a room and seem to know how someone is feeling without being told. You're bothered by loud noises, bright light, and too much stimulation in general. You need time alone to settle out and feel calm again.
Your friends can drink cup after cup of coffee, but one cup makes you jittery and anxious. Medications can cause weird side effects for you, and you have a low threshold for tolerating pain. You can't stand being around negative, draining people, but you find yourself drawn to helping others because you feel their pain, often before they do. You are empathetic and caring, but sometimes people take advantage of your helping nature, and you have a hard time creating boundaries to protect yourself.
You are easily moved by art, music, and anything that stirs your soul or touches your heart. Sometimes you cry because you're so moved. In fact, you have a very rich and vibrant inner life, whether you're more introverted or extraverted. In the right environments, with the right people, your world is exquisitely tuned and meaningful.