I Took A Prescription Of Ketorolac AC Trometh 10 Mg

I Took a prescription of Ketorolac AC Trometh 10 mg about 3 hours ago, I had a feeling come over me about 45-60 minutes later of complete relaxation but very shakey , than the last half hour I have had excruciating pain around my left side, into my upper left lung it felt like and under the left breast. I mean I have to take Methadone for severe back pain and this is nothing compared to that right now, I have a bad stomach and am on Nexium 40mg twice daily , is this pain serious ??? HELP ME PLEASE and if this is one of those doctors or someone acting like a doctor and than wants my mastercard # forget it, I have healthcare here, this popped up and asked me if I wanted help