Well it certainly sounds like a chronic worm infect. Many of us here in same boat. There are only guesses as to what kind of worm u may have, and many protocols to try. That heaviness is the worms and the stuff they spew out. Albenza or tricalbenza is even better if u can get it. Coconut oil is very good too. The kind u cook with, u can eat it and make pastes with it. Epsom Salt baths are a must. Just get started trying dif. Things. They dont die easy. If u have insurance just tell your docyoure having twitching/spasm feeling in brain. Maybe youll get lucky and get a proper diagnos. Some say u can put borax in your shampoo. Use head and shoulders. Rub coconut oil on your head. Theres too much to list as far as products to try. Read back posts. Good luck.