Hello, you must meet a chest physician as you seem to be in trouble. Night time congestion can be early sign of Asthma, you will need PFT to confirm and if you are overweight, symptoms can be part of OSA syndrome also. A proper diagnosis will help to start specific medicines. Take care of acidity as all the respiratory conditions get worsened with excess acidity.
Health Tips
finish your meals and night tea/snacks about two hours before going to bed. if you get to know that you are allergic to specific things/exposures, please avoid those.