Sorry to say you were too optimistic. You have to keep flushing every 2-3 (I do 2) weeks till nothing comes out anymore for 3x. Also add bowelcleansing.
I hope you did the Epsom Salts that cleans the bowels too, it sounds that some of the toxins did not get out fast enough. And you can get some feelings like the flu.
I think that is the problem with your eyes, I use to get terrible sinus pain.
You might consider doing another flush. The best thing would be a colonic but not everybody is close to a place or want to spend the money. You can do several enema's too.