For about a month, I've been itching all over really bad. When I have an itch on my scalp and I scratch it, I suddenly feel a cold tingling all over my scalp and I feel something just under the skin move from my scalp to either my neck or my face somewhere. I've had bad diarrhea and found something in toilet bowl with stool that looked kind of like a squid but it moved a little and clung to the side of the toilet bowl when I flushed. Every few days or so, I feel things biting me all over. The worst seems to happen around my fingernails, toenails, and my butt. I have a lot more symptoms and even some pictures but maybe you should ask me some things...