Hi Moe and welcome to the GERD forum.
Since you have post nasal drip, you may be on the wrong meds....talk to your Dr about trying a H2blocker instead of a PPI.....
The Dr may want you to stay on the med a bit longer as it does take time to see benefits from these meds,,,,
You will also want to modify your diet and lifestyle as they too can play a role into how you feel...the meds can not alone make you better...BUT if you have any damage to your esophagus the meds can help repair that damage .
Also talk to your Dr about pro biotics to help with how these meds affect your GI track.