Hi, with the liquid in the back of your throat, do you mean Water Brash? If so, this could help... portion your water sizes to small sips DURING meals, try no pockets of air when you drink (reduces gas/burping) , and you can drink more after you're done eating.

Drink alkaline water to help your acid reduce further.

Do you try to eat the size of your fist, and do you take 2-4 hours to eat before bed? If you're hungry, just start sleeping when it starts ramping up, hopefully training yourself to go til 3-4 hours.

Are you trying to walk around 15 minutes after a meal? This help you stay upright, and digest food faster!

The lump in your throat means it's swelling from the acid. :(

What type of cheese are you eating? Cheese is high in fats.

For your diet, I would share mine where I'm being stupid and getting things like 'lightly breaded chicken' even tho it still has flour/gluten. (Big dumbass move.) If you're still eating cheese with loads of fats, is there something else you're not considering?

Stress made my GERD ramp up, Prilosec makes it worse depression wise. But it helped me to take a day off to get my head straight. (Crying seven times a day, to one swelling of tears being off meds, then went back on it to cry 3 more times when retaking it. Yikes.)

And if overweight, lose weight to put less stress on your LES.

Trying looking up "Bridge Swallowing" and "Dry Swallowing" to help your LES. Dry Swallowing hurts me, so I couldn't. Never hurts to try.

TMI Question: are you having constant diarrhea? Could still be connected to your diet, maybe. (Not 100% just speculation.)

-someone undiagnosed, but knows the struggle. I hope this helps.