I Am A 60 Yo Female. 5'5 Tall And About

I am a 60 yo female. 5'5 tall and about 200 lbs. About 10 years post roux/n/y gastric bypass. I was eating my lunch this afternoon and choked on a small piece of potato chip. I was finally able to cough it up to stop choking, but I am now coughing alot and have pain in my upper left chest. Should I be seen in the ER now or can it wait til Monday to see my primary physician? Thank you