Ugh, heartburn kept me awake more than my baby does now! I used to drink fresh coconut water in the afternoon and eat a very light dinner. Strictly say no to spicy cravings at night.
It's so hard to control food cravings, but spicy stuff is the real culprit behind the chest burn. I switched to cold curd and milkshakes to cool my stomach. Totally worth saving myself from that horrible reflux!
Since my doctor allowed a light 15-minute walk after meals, it really helped keep my digestion smooth and reduced heartburn. Avoid oily food and keep moving gently if your doc says it's ok.
I had thyroid and bad acidity too, so my doctor was very strict about my diet and checkups. Don't self-medicate, always ask your gynac if you need a safe antacid.