I also agree with everyone else. Sounds like die off.
Although enema’s can help, they aren’t going to completely rid you of all die off symptoms immediately. Other things come into play too like what type of enema you are doing, how much you are using and how long you are holding it in for.
I found during heights of my die off, the toxins sucked the moisture out of my stool causing me to become a concrete slab inside. This is where enema’s can really shine.
As for the vitamin C, it does list sugar in the ingredients. I would try to find one that specifically says no sugar. I found one in my grocery store, no name brand for 10 bucks. They are out there. Just gotta look hard. I find that anything chewable is almost always going to have sugar in it to make it taste “good”.