I've been experiencing this weird chest congestion and discomfort for about six months now. I went to see a cardiologist and got an echo test done, and they said my heart is fine. There's no pain coming from the heart area either. But this annoying chest pressure just keeps coming and going. It's not interfering with my daily activities, but I have been feeling more tired than usual. Breathing isn't an issue, thankfully. However, today I noticed a sore throat along with the chest congestion. There's no mucus with blood or anything alarming like that, but the discomfort is still there from my throat to my chest. Could you offer some advice on this?