This is a pretty normal feeling. They are scattering and running for their lives! Humaworm is slow, but safe and efficient, and takes a while to get them all gone. Just relax and keep going.
After my first cleanse, I waited the normal three months to get the second cleanse and all those three months I continued to feel that feeling of them wiggling all throughout my body. It was very unpleasant. I just went off of good faith that the second one would get them! The second cleanse I was sick for a good five days when I first took it, then felt fairly normal after that. And didn't have the constant wiggling in the three month waiting period. It was such a moral booster!
We are on our third cleanse now, and I can feel them wiggle as they die. There is not nearly as much as the first and I am not even close to being as sick as I was the first cleanse!! Good luck and keep it up! It is working. The big ones may be Asaris, you can feel them wiggle and it takes some time for the herbs to penetrate their skin. I have read that after two weeks is when it really starts to get them and they start to die. Don't be surprised though if you continue to feel them after the first round. The herbs can stay in your body for a good month after you are done taking it. I would also consider doing an enema if you aren't going as well as you should be.