For the past few months, for seconds at a time, I feel very faint - then it goes away. At first it happened 2 or 3 times a month, once or twice each day. It usually occurs when I m sitting or standing still, but today, for the first time, it kept happening while doing pilates exercises at home, and I had to stop. I do have SVT, for which I do not take any medication. I started taking Livalo a few months ago, but stopped after feeling muscle aches and stomach discomfort. However, my internist felt I should try it 3 x a week with COQ10 because my cholesterol rose from 190 to 304. The last few years have been very stressful for both my husband and me in terms of health issues and family - I m wondering if it could be due to anxiety, but how do you tell?