Cramping during third trimester

Hi! i’m 33 weeks pregnant and since last night i’ve been having cramping on and off on my lower stomach. I’ve had some cramping before but it feels different this time. it’s not a constant pain but it comes and goes and probably only happens for no more then 5 mins. My doctor said when i have worries that i should just go to labor and delivery but i also have really bad anxiety so i never know if maybe i’m being dramatic because of my anxiety or if it’s an actual worry. what do you guys think? sorry if it’s stupid lol.