Left shoulder/Arm under development

[knulfm]

Hi, im new to this and just joined, im 18 and i’ve been wanting to get consistent but now that i’m graduating in a week i have started because i have more time. My left arm is really weird. My upper bicep and shoulder are a lot smaller in muscle density and my collar bone is kinda deformed and has a curve almost like it was broken and grown back wrong. Sometimes when lifting shoulders it hurts bad and i try really hard to focus on the underdeveloped muscle tissue but nothing works. also my should pops and grinds when doing certain motions but ONLY my left. it doesn’t really hurt usually but i don’t know what to do. my lat on my left side is also smaller and shaped different.