Thyroid disease in cats is linked to heart disease and a fast heartbeat in conjunction with any other symptoms of thyroid problems is cause for a trip to the vet. Once the hyperthyroidism is treated, your cat's heart rate should return to normal.
Stress reaction â some studies have found that paranoia is more common in people who have experienced severe and ongoing stress â for example, prisoners of war. How stress can trigger paranoia is unclear.
Most people experience stress and anxiety from time to time. Stress is any demand placed on your brain or physical body. People can report feeling âstressedâ when multiple competing demands are placed on them. The feeling of being âstressedâ can be triggered by an event that makes you feel frustrated or nervous. Anxiety is a feeling of fear, worry, or unease. It can be a reaction to stress, or it can occur in people who are unable to identify significant stressors in their life. Stress and anxiety are not always bad. In the short term, they can help you overcome a challenge or dangerous situation.