What Causes Recurring Sharp Pain In The Shoulder?

21 yr old male. Non smoker. Non drinker. Been having pain in my right shoulder under my collar bone. Comes and goes once a week or every other week. When it hits it just aches while stationary or basic movement like walking sometimes radiates outwards. Stronger pain when I bend over. Even stronger when I bend over and breathe in or out. Today I bent over let out at breath and the pain almost a popping sensation started in my right shoulder then went down my side where I felt it on my ribs as well