I've been having chest pain for about two weeks now, mostly on the left side under my breast. It's really uncomfortable because it gets worse when I lie down and feels like it's traveling to my back. Breathing deeply is painful, like a pinching feeling, and sneezing isn't an option because of the pain. I also feel like there's mucus in my throat, although I'm not coughing much. Last year around this time, I had a bad cough that lasted a month. When I saw a doctor last year, they had me do a chest X-ray and an HRCT, but those were normal, as was my CBC test. They gave me a painkiller with paracetamol since I had a fever in the beginning, but the fever's gone now. The chest pain isn't improving and seems to be getting worse. Do you have any advice on what I should do?