I am 34 weeks second preg. Last two days felt nauseous. Have had pain prob pelvic girdle I've been told for months now so that's normal. But this evening tummy went very hard for quite a while accompanied by nausea and pain. Also had some pain inner thighs and lower back but negligible. Eased up now but wondered what it was and should I be worried? Oh btw varicose veins playing up too and migraine yesterday!