Anxiety is a feeling of unease, such as worry or fear, that can be mild or severe.
Our Health A-Z contains more information on Anxiety.
If you are worried about this condition you can try our free AI Symptom Checker here.
Supraventricular tachycardia (SVT) is the name given to an abnormality of heart rhythm, characterised by a fast heartbeat.
Our Health A-Z contains more information on SVT.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.