Suggest Treatment For GERD And Ongoing Episodes Of Laryngospasm

I have GERD. Is there anything I can take that is without significant side effects ? I have recently started taking Famotadine and have been experiencing nausea. In the past I have tried ; Prilosec, Nexium, Omeprazole. All have caused uncomfortable side effects. I am also on a few other prescription meds for Hashimoto s disease, Hypertension, High Cholesterol, Migraine, and Low Dose ASA. Another reason for taking meds for GERD is that I have had episodes of Laryngospasm. I am unhappy about taking all of these meds but understand why they are necessary. Getting rid of the nausea would be very nice. Please help...?