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.
The effects stress can also lead to physical symptoms, such as headaches, insomnia, muscle pain, indigestion, abdominal pain, and muscle tightness.he immediate symptoms of stress include increased heart rate (tachycardia), high blood pressure (hypertension) and dilated pupils. Short-term acute stress can actually help a person to react more quickly, think more clearly, and be more attentive and productive.