Weight lifting last night, felt immediate pain between shoulder and neck, but did not feel like the trapezius. Hard a tear sound. Can t lift head this morning without severe pain. No local swelling, but tender to touch near anterior deltoid and spine/neck. Full RoM in left shoulder. Need advice on what the injury may be and treatment.
Hello, It sounds like a muscle or tendon tear. Rest, stay HY Chat Doctor.  If it is not resolving soon you will need to see a physician. Muscle tears heal fairly quickly but tendon tears take longer and can be more severe. See a doctor soon if it is not resolvingRegards