I'm really concerned because I'm still having this pain on the left side of my chest and in my neck, even though my TMT and high-sensitive troponin tests came back normal. Should I still be worried about the possibility of a heart attack?

It's good that your TMT test and high sensitive troponin I test results are normal. However, persistent left chest pain and neck side pain should not be ignored. It's important to further investigate the cause of your symptoms. You may be experiencing musculoskeletal pain or other non-cardiac issues, but it's essential to rule out any cardiac concerns. You can take a medication like Acetaminophen 500mg for pain relief. If your symptoms persist or worsen, consider consulting a healthcare professional for further evaluation and management.