Hi, thank you for the query. I would have love to have more precision like the location, character and duration of the chest pain he has. Many conditions can cause chest pain and in many instances, it is gastritis or peptic ulcer disease. If this were to be the case, then aspirin would worsen it. It would be much easier for me to understand the cause of his chest pain if you describe the pain. If not possible, I would suggest he sees a doctor for proper assessment and management. Concerning blood pressure, the value itself is not really low. Low blood pressure is often considered when the systolic pressure (numerator) is less then 90mmHg. May be this is his baseline blood pressure. Generally, a low blood pressure that is abnormal to the system is often accompanied by other signs and symptoms like an increases in heart rate, dizziness, black outs, fatigue, etc. If he does not have these symptoms, then his blood pressure is normal and if they are present, you need to take him to Emergency department for management. I hope that helps I wish him well