I’m 26 weeks 2 days, high risk pregnancy, and suffer from hyperemesis. Last night while in bed my vagina felt like it was tightening for a few minutes then release. My lower belly would trigger then release. I looked up Braxton Hicks and people described it as your belly getting hard as a basketball. Mine tightens but I wouldn’t say that tight.Is this Braxton Hicks? Should I be worried or looking for anything?