you can do a coffee enema while using oxy. The main thing is to get matter out of your system asap.
I don't know re the AVC and lime drink. You might be over alkalizing part of you, while part stays acidy (the twain not meeting).
Re the coffee enema, do several bags worth. It's fine.
No reason not to eat protein -- trick is to eat patiently. Chew really well, eat slowly.
Do look at Mag 07. I liked it a lot more than Oxypowder . Also look at King Bio (homeopathic sprays) Lower GI formula and Constipation formula. Just google for them.