Clavicle dysfunction ?

[kcho]

Thanks for the reply !
PS : Also, my clavicle looks like it is a bit more "out" under the neck than the other one. That said, my two clavicles are very dissimilar in shape (my torso is also very asymetric) so this might not be useful evidence.

It just come to my mind that maybe there is some kind of muscle imbalance around the clavicle? causing it the subluxation. Try search for a picture of "clavicle muscle attachment" picture. You can see the position of these muscles: subclavius; deltoid; trapezius and sternocleidomastoid. If one or more muscle is habitually pulling more than it needs to, it could exert unnecessary force onto the sternoclavicular joint. Due to your history of lifting weights, you may have developed excessive tension around these area. So your physiotherapist did the right thing, only that you need to keep doing it to yourself also. Otherwise, it could become tight again and you wouldnt even know about it because you are so used to the feeling.

Try massage those muscles, see if they feel aching or maybe just tight without discomfort. If you find it, use hot pack warm it up first then massage, then stretch. Do it at least once a day.