I often feel tingling or like ant crawling on my chest and abdomen area. 8 years old i injured my upper, lower back and hip while performing stunt. Since that day, i have complaint of lower/ upper back, shoulder, biceps pain and numbness in middle toe finger.. Shoulders make a click noise if i raise my hand and pain on exercising. Lower back and hip areas have become dark. I have hookworm infection too. Is it parasite or nerves issue?