Im 21 female . i have chest pain like someone's poking with the needle and itchiness on the chest sometime hard to breath what could it be?

Poking: Sharp, needle-like chest pain is likely to be related to the structures of your chest wall: the muscles, ribs, nerves or supportive tissues (so called "myofascial syndrome") - alternatively, depending on location, it could be in your breast: painful breast cysts are very common in young women and come and go in severity during the month under hormonal influences.