Does this sound like normal pregnancy problems?

I'm 35+2 days pregnant and I'm getting awful pains recently. Around my knicker line I get awful cramps/ tightenings that really do hurt a lot. Plus I'm getting pains travelling down both legs to my feet, a numb tingly pain. Is this usually sciatica? I've called my midwife and she's going to get back to me later on. In the meantime was wondering if it's normal to have a lot of pains?