Thanks ladies it could just be from work and being on my feet for hours!
It sounds like braxton hicks I get them a lot when I am over doing it like right now I just got done riding a bike 6 miles from my appt an my stomach is tighter than hell along with contraction pains. Try drinking cold water an laying down to rest. That's what my Dr tells me to.do but all drs are different so if u are really concerned call an see what they say. Good luck
Tightening can be harmless braxton hicks but if you are really concerned see your gp x