What Causes Upper Abdominal Pressure While Having Plaque Build Up In Abdominal Aorta?

Hello. I am a 38 y/o female. I ve had stents put in my legs due to poor circulation. I know I ve got significant plaque build up in coratic artery & some plaque buildup in abdominal arorta. Well the last 3 weeks or so I ve been feeling discomfort that comes & goes in my upper abdomen (center & under or behind left breast). It s really hard to pinpoint exact location but I feel a lot of pressure there. It usually only lasts few minutes. Today the pain came & lasted about an hour. I was also feeling some pain in my neck & feeling a little shorter breathe than normal. I went home laid down and fell asleep. I felt better after I woke up but I still feel little discomfort every now & then & i feel extremely exhausted. Should this be something to go to ER over? Especially since I feel a little better now?