I have acid reflux so bad it is coming up into my sinuses. I was only taking one Nexium (40mg) and then the Gastro added Raniditine (300) mg at night. I have started cutting them in half and it is getting better, but my sinuses and throat hurt all the time. My stomach is upset, and I have explosive gas. I’ve elevated my head at night. How can I get this to settle down?