Yeah, mine almost always lasted for hours as well...:/
...and absolutely yes to the thoughts/anxiety correlation!
This is the basic principle behind CBT...and why it teaches a restructuring of the negative fearful thoughts into positive rational ones.
Have a look into our Resources for CBT material, as well as the Positive Mantra/Affirmations link.
Keep up the great work!
"Courage is not the abscence of fear, it is feeling afraid and doing it anyway!"
"Worrying does not empty tomorrow of its troubles...it empties today of its strength."
Corrie Ten Boom
Panic Syndrome recovery due to CBT