I have congestive heart failure. One large heart attack in 2000 and a couple lighter attachs since. I am a female, age 69. Lately I have been having rounds of fatique, pain starts in back and speards tosides, chest and arm. Sweats and flushed face. Dizzy and weak. I know how to handle a spell when it starts by stop what I am doing, deep breathing, cold wash on my face. But I have had one bad spell 6 days ago that scared me. Do you think I need to have it checked and what do you think is causing these flare ups?