I only can reach orgasm on top and it hurts to use a vibrator on my clit it's so sensitive is there something wrong with me lol?

Here are some ...: All what you described are very much normally expected among many individuals. Anatomically, being on top gives you a more & better active move to direct the the anterior lower vaginal wall, where G-spot locates, generate tenser thrust and friction against the glans penis. Thereby, you reach orgasm easier. Using vibrator should be done at right time in right way; experience and commonsense may...

It is normal: Most women Donot routinely get orgasm with simple penile penetration, some friction to the clitoris is needed. Generally when the woman is on the top she can control the movements and pressure required on the clitoris. Hence you are quite normal in your way. The vibrators are commonly used to facilitate the orgasm but you seem too sensitive. Gentle manual stimulation by the partner could tried.