I too started with that type of pain 15 years ago. I would have an attack about once a year. As the years went by, each attack got worse and lasted longer. I saw a doctor and was told nothing showed up on the ultrasound. Long story short, I wound up having emergency surgery last October. It was the best thing I ever did. Finally the pain was gone forever.(sadly I suffered two strokes the following month.) Consult with your doctor ASAP. Good Luck!!