LPR (Silent Reflux) / Koufman Diet Questions

Hi All, this is my first post.

I have had a sore throat for 5-6 weeks, male aged 32, very fit, non smoker etc. The reason why I think I have silent reflux is, I drink up to 16 cans of diet soda per day, 3 cups of coffee, tea and over fluids.
I eat huge volumes of food between 6.30 pm-8.30pm, c75% of daily calories , I take in a lot of caffeine via energy drinks and tablets. I have been to the Dr and he does not see any signs of infection etc.

I was wondering if I could ask for help with the following:-

Can you use chewing gum on the induction phase of the Koufman diet? (another bad habit of mine 2 pellets at a time, up to 6 packets per day)

Have digestive enzymes (ingredients below) proven helpful for silent reflux?
Betaine HCl: 200mg
Pancreatin: 200mg
Papain: 50mg
Bromelain: 50mg
Papaya Fruit Powder: 45mg

Thanks all

cut that back to 1 can of diet coke a day and no coffee and then tell us how you feel. Bet it will be a lot better.

I am out with work on Friday night (bad timing).

In terms of drinks what is generally best PH wise, I was thinking of drinking Guinness (less fizzy than lager) then switching to vodka with ice. It would be better not to drink but that is not really going to happen for me during a social event.

I will of course be taking anti acid tablets throughout the evening.