New Chest Pain Spreading to Back After Eating, Sleepiness: Possible Causes?

I understand you're experiencing chest pain that started today, and I can see why you're concerned. Chest pain, especially when it spreads or affects breathing, should always be taken seriously.

Given the nature of your symptoms and the recent medication change, I strongly recommend seeking immediate medical attention. Chest pain can be a sign of several serious conditions, including heart problems, lung issues, or even medication side effects. While it's not always an emergency, it's best to err on the side of caution with chest pain.

In an emergency room or urgent care setting, they'll likely perform an EKG, check your vital signs, and possibly do blood tests or imaging. They'll also review your new medication and its potential side effects.

While waiting for medical care, try to rest and avoid exertion. If you have aspirin and no allergies to it, taking one might be advised by emergency services if heart issues are suspected.

Remember, I can't diagnose you online, and chest pain should always be evaluated promptly by a healthcare professional. Your health and safety are the top priority here.