I was put on xeralto 15 mg BID 2 weeks ago due to a PE. I am to take this dose for 3 weeks then transition to 20 mg daily. I have area soon my arms that are red, purple and blue due to excessive bruising. One area is from rolling up the sleeve of a long sleeved T shirt. This caused a large bruising area. I plan to contact my doctor tomorrow but should I seek immediate medical attention?