Hip pain and swelling

So I have been on vacation the past 3 weeks and this only started since I've been here. Not sure it's related in anyway but we are in Jamaica instead of Canada so completely different weather may contribute?? When I sleep I sleep on my sides "like we are supposed to" and wake up constantly with hip pain. Both sides hurt and I think it makes me wake up more to turn over to give one hip relief for a while.

They both feel swollen and bruised under the skin to me. I even saw that my left hip was swollen to the size of a golf ball the other day when I tried on a dress. I could see it through my pants AND the dress I tried on.

I've tried sleeping with my hips on a pillow (in addition to the pillow between my legs) and I guess it's a bit better but not really. Anyone else dealing with this?

Oh and I'm 27 weeks and 2 days.