Pain!!

Des • Oliver Jackson DeSimone💚
I already went to my doctor about this and she said its round ligament pain and im fine.. But I get this crazy pain almost like period cramps and it shoots into my legs and my back and hurts so bad I feel like I'm going to puke and I can't walk when it happens. It goes away after a while it's happened twice so far. Idk if it's pain from him growing or what but it is scary.. Im 29 weeks exactly and it's been happening since 26 weeks. Has this happened to anyone else?? What was it or is it??