Two years ago i had a crawling sensation in my throat i thought that it was a worm. And i felt this in my stomach also. So i got an appointment with an md doctor . He said that it was only gas in my stomach. He also took my blood samples . In my blood report my hoemoglobin was very low although i had a balanced diet. So he prescribed me with some vitamins . After few weeks i started feeling same. Sometimes it is normal and while sleeping i stars to feel the same that crawling sensation in my throat and in my stomach.