Arm/shoulder injury...more wrong than original diagnosis?

Hi all,

In early February, I suffered an arm/shoulder injury during a seated shoulder press workout (utilizing 70 pound dumbbells per arm). The orIginal sensations I felt were numbness in my entire right arm, which lingered on for approximately 5-7 days post-injury. Since then, I have had my shoulder evaluated, had an MRI performed, and learned that I had suffered a posterior labral tear in my right shoulder. However, I have noticed that despite the labrum being torn, I occasionally suffer from tightness/numbness sensations in my right bicep as well as instability in my shoulder. Furthermore, even my clavicle (I think that s what it s called...piece between essentially the shoulder and right chest/pec) ) has felt off/as if it s drooping or something. In the mirror, everything appears fine, but on the inside, it doesn t feel right. Even with arm/upper body exercises, I experience some slight numbness, and even days that I am not working out I experience those sensations as well. My question to you guys is the following; is my right shoulder labral tear more complex than just a torn labrum? Thanks in advance to anyone who helps answer this!!