The vague pain inside the left side of the chest is considered to be caused by coronary heart disease and angina pectoris. It is recommended to take sublingual heart pills or compound salvia drops during the onset of discomfort to help stop the onset of discomfort. It is also not excluded that it is caused by simple costochondritis, especially if the pain is aggravated by pressure on the uncomfortable area. It may also be caused by cardiac neurosis, you can take Xingyue capsule and Shuhelian Xiezhu capsule to relieve the current uncomfortable symptoms. It is important to first clarify the diagnosis and target the medication so that the patient’s uncomfortable symptoms can be better relieved.