My thigh is numb

Around 15 weeks of pregnancy I was working and felt a really bad pain in my thigh, then it felt like my leg was asleep so I ignored just thinking it would stop. A week later it was just numb. My thigh has been numb and tingly for like 10 weeks. My mom thinks I should call my doctor and ask about it and my dizzy spells I keep having at work I've almost passed out 3 times but with will power I didn't. What should I do?