@nasale. I’m stunned that you were not told to restrict certain foods. I was also told to sleep with my head/upper body elevated. The doctor suggested the type of bed on which you can raise the upper body, and as an alternative to put something under the legs at the head of the bed. We did that option. My husband put blocks of wood under those legs. I also sleep on two pillows.

Is the doctor who did not tell you these things a gastroenterologist? If not you should go to one.
JK