Yes, my husband was having pain, first in the jaw and neck, then eventually as the blockages presumably got worse, it was at lower and lower heart rates, in the chest area. When he had to ride slower than me to climb a hill to avoid the pain, was when he insisted on the angiogram. They never said why the blockages didn't show up; both are in the major descending artery. Sometimes when you are very fit, your body works a little differently, though.
Good luck.