I have tested positive for strongyloides, and nothing you have described sounds like strongyloides to me. As david says, stronyloides are tiny in comparision to Ascaris. You would not feel strongyloides moving in your intestine.
With strongyloides, you do not get a heavy worm loads in your gut.....or it takes years and a really weak immune system to get a heavy load.
I did used to feel biting in my intestine during the first few months I took herbs. Strongyloides are a hook worm that attach to the mucoid surfaces of the small intestine, and if they get dislodged will try to re-attatch.
the problem is with Strongyloides they can travel thru your blood stream to anywhere. This can cuase inflammation/infection in organs and joints. have you other health problems other than discomfort in gut and movements/reaction to the zapper?