Though your symptoms somewhat resemble acid reflux condition so called GERD, some of symptoms like nasal congestion are unusual. For now you should follow some lifestyle changes advices like avoiding oily, spicy and junk food, avoid too much coffee, tea, smoking and alcohol. Don't sleep immediately after taking food i.e. at leat for 2-3 hours, elevation of head end during sleep or using extra pillows. If symptoms persist visit your doctor for adjustment of medicine and further evaluation.