My husband went to the doctor complaining of left chest pain under his breast, left arm tingling and numb or tingling lips.  He has high blood pressure.   He was told that he had inflmation of the cartilage and sent home.    They did not do an ekg.    When he sits down in a chair at night he is instantly asleep.   I worry that it is something more serious but he is convinced that it is just a strain.
Hello! Welcome and thank you for asking on Chat Doctor! I agree with you that his symptoms (especially the tingling lips) are not typical of a cartilage inflammation. For this reason, I would recommend consulting with his doctor and performing some tests