Feeling lower energy on fast than before

I must admit I felt better just before I began the fast than I have felt the last week or so. I also look sickly in my face. When I was eating Budwig people told me I had a glow, and my face did look better. Now I look very strained, face looks like someone who just got out of the hospital or suffered a recent trauma. I do feel younger in my body, some days, with walking and stuff; but also feel fatigued most of the time. For example I have been walking every day but my legs never recover and it seems I am forced to rest now as I started feeling sick yesterday. I will place a separate post about my reaction to a high enema, but I wanted to talk about the fasting and whether this is normal or I am doing something wrong. I do know that some days I just don't drink enough juice or water, etc. I sometimes don't feel the desire/appetite and other times I am out and about and didn't bring enough with me or whatever. I am trying now to be better organized and to juice in advance and to remember to take adrenal tincture and ashwaganda enough. But in general, does it get worse before it gets better? Please, I don't want to discourage anyone, as I feel the program is FANTASTIC, and so is UNY, etc. but I feel by talking about the trials and tribulations it will help me resolve them and perhaps contribute to the education and experience of others.