I have pain near the surface of the basil epidermal layer; to the left of the sternum approximately 1.5 inches to the left and under the right half of the left rib cage arch. I also have pain on the appendage that connects the shoulder to the hind of the skull.
Thanks for your question on Chat Doctor. I can understand your concern. By your history and description, possibility of musculoskeletal pain is more. It is mostly due to heavy exercise or bad posture which cause muscle strain. So better to avoid movements causing pain. Avoid strenuous exercise. Avoid heavyweight lifting. Avoid bad postures in sleep. Apply warm water pad on affected sites. Start painkiller and muscle relaxant Chat Doctor.  Don't worry, you will be alright with all these treatments. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.