Yes all 3 symptoms can be from an AI disease which should be checked for by a rheumatologist. Your PCP might do some screening tests but a thorough work up is needed by a rheumatologist to get an accurate diagnosis. Then treatment can be initiated. I hope you follow through on this especially since your EKG shows an old infarct. There’s a high percentage of Lupus patients with APS ( about 30%} 9/10 lupus patients are women. Good luck!