As far as the U.S. release of the Lumia 940 as well as the Lumia 940 XL is concerned, rumors have it that AT&T may start selling them from the first or second week of November, Nokia Power User (NPU) reported. T-Mobile is rumored to only sell the Lumia 940 handset.
Heart or blood vessel problems that can cause chest pain: Angina or a heart attack: The most common symptom is chest pain that may feel like tightness, heavy pressure, squeezing, or crushing pain. The pain may spread to the arm, shoulder, jaw, or back.
The chest pain, which is caused by reduced blood flow to the heart, typically occurs behind the breastbone and may travel down your left arm or up your neck, or be a squeezing, pressing sensation that does not change with breathing.