hi my name is maria, my mom 79 had following symptoms last night hard to breath, allot of sweating, she is better now, sleeping, she had this same event a few months back and dad took her to ER, they sent her home saying they couldn t find anything, she had a non stress stress test with in last 6 weeks and it also showed nothing, mom takes allot of medications, ie 3 diff medications for her heart, diabetes, depression, high cholesterol, she is moderately overweight, pls advise