Acid reflux (GERD) is usually from low stomach acid--not high acid as many believe. Have you tried taking HCL (hydrochloric acid)?
Wondering why you can only take one med at a time? Is it because you've taken parasitic meds for so long that your system can't take much more? I'm becoming concerned for myself since I have taken meds 28 months now, and I haven't won the battle yet.
I feel like I'm on a merry-go-round and can't get off. I clear up one parasite and another appears. I have no idea if all these parasites were there from the beginning of my battle, or if I'm still getting new ones.