You may have a medical condition causing this. Try an experiment at home. Get someone's blood pressure cuff if possible. If not possible, lay down and completely still and take your heart rate. Then, stand perfectly still without moving and take your heart rate after 5 minutes, remaining vertical while counting. The numbers should not be very different. If they are, you may have to begin exploring medical causes.
Originally Posted by RevivedAgain
Jesus saith unto him, "I am the Way, the Truth and the Life; no man cometh unto the Father but by me." John 14:6