Can taking antacids, and solid foods at night help overcome GERD?

Hello doctor,

I am a 12-year-old girl, I weigh about 103 pounds, and my height ranges from 61.2 to 63.6 inches. One day, not too long ago, I was sleeping, and I had not engaged in any significant activities that day, except lounging around the house and going to the mall in the car, among other things. But going back to when I was asleep, I woke up in the middle of the night with my mouth filling up with saliva. I kept trying to swallow it, but it tasted nasty and sour. No matter how many times I swallowed, it kept coming back. Eventually, I had to spit it out into the sink. This experience was also accompanied by feelings of hunger. I felt like I was starving to death, and I was also feeling dizzy. This was not the first time this has happened to me; it has occurred a couple of times before. Months before this incident, I woke up in the middle of the night with similar symptoms and had a fever. When my fever subsided, I went to the doctor's office for a checkup. During the car ride, I was extremely hungry, and even after eating at home, I still felt incredibly hungry. Nothing seemed to satisfy my hunger. Later, when I weighed myself, I realized I had lost around four pounds (I was about 100 pounds at that time). At that point, I suspected it might be GERD (gastroesophageal reflux disease), and I still believe it could be. However, I would like a doctor to confirm this. What do you think?

Thank you.