Sinus tachycardia. This happens when your heartâs natural pacemaker sends out electrical signals faster than normal. Your ticker beats fast, but it beats the way it should. What Causes It? Any number of things. Strenuous exercise, a fever, fear, stress, anxiety, certain medications, and street drugs can lead to sinus tachycardia. It can also be triggered by anemia, an overactive thyroid, or damage from a heart attack or heart failure.
carpal tunnel syndrome. a common disorder of the wrist and hand characterized by pain, tingling, and muscular weakness, caused by pressure on the median nerve in the wrist area and often associated with trauma, rheumatoid arthritis, or edema of pregnancy.
What is carpal tunnel syndrome? âCarpal tunnel syndrome is a condition where the tendons in the wrist swell and put pressure on the median nerve that helps supply feeling in the hand. If you have carpal tunnel syndrome, your hand will have pain and numbness and might even wake you up at night. It often gets worse with certain activities, such as driving or performing repetitive motions.â.