AIBU to worry about the agony I'm in? All morning I've been getting what can only be described as labour contractions. When they come on there are disabling. An horrendous cramp which feels like my insides are being twisted - and then they go off. Each one lasts around 10 seconds and they're about 15 - 20 minutes apart. Awaiting call back from 111 but I'm really worried. I'm not pregnant.