I'm experiencing some chest pain right in the center, and it's been going on for about 3 days now. I'm having a tough time breathing when I move or lie down, especially on my left side, but it's not as bad when I sit or lie on my back. I'm also feeling kind of gassy in my stomach and it's making me really confused. I've tried taking 3 ranitidine pills already, but there's still no improvement. Could this be something serious? Can you help figure out what's going on?

Probable diagnosis is Gerd, patient is advised pan d ,orally.once daily for 14 days before food..Avoid spicy foods.