Rapid Heart Beat in Cats. Save to mypetMD. Supraventricular tachycardia (SVT) is a medical condition that is characterized by a rapid heart rate that occurs during times of rest or low activity (i.e., at times other than exercise, illness, or stress).
If you chew too much or subconsciously clench your jaws during stressful times, your jaw muscles can spasm and cause pain. Stress-induced clenching or grinding can cause slight misalignment of the jaw, leading to jaw, neck, or eye pain, as well as jackhammer-like headaches.
Best Answer: Stress can cause people to grind their teeth more. Clenching your jaw for long periods of time will make the muscles in your face hurt. It might be causing your headaches, but the stress can also give you headaches. There are over the counter remedies for nighttime grinding.