Normal or should I panic?

WB

I’m 25 weeks. Starting two days ago I got these strange almost “Charlie horse” like feelings in my stomach. Only ever on one side at a time (it started out on the right side now they are on the left). They did stop for a day but I woke up this morning and they are back on the left side- now it hurts more when I walk and have a shooting pain down into my vagina. Are these just Braxton Hicks or should I be concerned?