Hello Friend, Good that you are seeking a help. It's a symptoms of anxiety. You may be thinking too much about future like exam, career or relationship etc. Anxiety will influence body to react in with such nervous actions. Don't worry. Figure out out the reason for your anxiety and start working on it. You may take some counselling support to assist you if you can't isolate by yourself.
Next Steps
You can consult me online or reach out to any psychology counselor nearby
Health Tips
Practice yoga and meditation to control your anxiety.