I agree, I'm knackered most of the time! First couple of weeks I felt miserable in the evenings just before bed too but that seems to have lifted and I wasn't sure if it was more to do with TOTM than CD.
I generally don't feel bad as long as I don't have to do anything active, like walking
but this afternoon my parents got me to help move a huge tree in our garden and I had to shovel lots of soil. After about 4 shovelfuls I was totally pooped and when I tried to straighten up from my bent over position I felt all light-headed like I was going to faint. I had to lean on my shovel for a good few mins!
My parents had a good laugh at how much of a lightweight I am but I think they thought I was just being lazy. The nerve! At least they weren't complaining about the diet though.
I suppose it's to be expected really though when you're only on 500 calories per day. On a positive note, as long as I don't exert myself too much I actually feel better than what I used to on my old diet (of eat what I felt like - usually chocolate or cake!)
I always used to feel very shaky and ill when I got hungry, but that doesn't happen to me anymore. I feel hungry, but in a more distant and manageable way than I used to and I haven't gotten the awful shakiness once.
Have you tried discussing your energy levels with your CDC to see what they suggest? maybe you could try SS+ for a full week and see if it helps your energy levels and whether you're still getting a weight loss that you're happy with? Good luck with whatever you decide to do though!