Hello - I will try to help you but may I ask you some questions as well? These are just my random thoughts and are in no way medical advice.
1) How do you know your ammonia is high? Did you do a specific lab test?
2) Have you physically seen a parasite or ever tested positive for a specific parasite?
Your diet sounds healthy although if I were in your situation I would work to alkalize your body by increasing your fruits and veggies to 80-90%. The other 10-20% could be steamed veggies, sweet potatoes, quinoa, healthy fats like avocados and high quality, hormone free proteins. I would omit all dairy, grains, processed foods, alcohol and sweets while increasing green juices and veggie juices. Water with lemon juice is also helpful.
The burning you are experiencing could be extreme inflammation. Have you experienced hair loss? Do you have any signs of cataracts in your eyes?
I would keep the bromelian and dump the vitamins, calcium, magnesium and MSM. Why? These supplements are isolated chemistry meaning that they are isolated from their original whole food forms. They may be doing more harm than good.
If you want to increase calcium - increase leafy greens, sesame seeds, oranges, etc. When you take calcium pills they are generally not well absorbed and will eventually lead to bone spurs and arthritic knuckles - essentially stoning up the body.
Taking isolates pushes out other nutrients. It's better to eat the whole foods, juice them or blend them to get the best healing effect. MSM is a sulfur based compound and sulfur keeps Candida locked in your body so I don't take it.
It's expensive and 10 caps a day but my symptoms are almost gone and I am sleeping well after experiencing chronic insomnia for over a decade. I have taken many other herbals but this one works very well. It's a 90 day process but it kills eggs, larvae and adults. I had killed adults before with many good formulas but the eggs always hatched and re-infested my body thus allowing my symptoms to return.
Please don't give up hope. Check out Markus' Book "Heal Yourself 101" and Robert Morse ND's "The Detox Miracle Sourcebook". Both are super helpful. They also have YouTube channels with tons of free info.
I tried L-Ornithine a few years ago but it had no effect. To reverse this problem one must change the internal terrain to reduce overall inflammation, cleanse years of mucus and de-worm at the same time. It's not easy but it is possible. colonics may help as well.