Hi I have been getting this strange tingling on a off since I was pregnant with my son 4 years ago. It has slowly go worst over that time. It's not painful just irritating. Sometimes it goes down my legs and up my back, and can last a few days or weeks. It then goes away for a few weeks or even months. I've spoken to a doctor about it but they don't seem too alarmed. What could it be? Thanks for reading, Hayley.