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.
This tends to be especially true of jaw pain and most jaw and tooth discomfort. The association between anxiety and jaw pain isn't always obvious, but there are generally two causes: 1  Facial Tension All forms of facial tension may lead to jaw pain. 2  You may not realize you're tense either. 3  Hormones in the body can tense your muscles and joints even without any action from you.