Hi,
Welcome to HealthcareMagic Public Forum
Common causes of difficulty in swallowing considering your case:
-
Anxiety and stress: as you have exam, other weird symptoms, scared and fear of parasites going in brain. In such case there is spasm of throat.
-Tonsillitis
-Other local pathology
These causes need to evaluated. But do not worry, it less likely due to parasites.
I hope this information has been both informative and helpful for you.
Wish you Good Health.
Regards,
Dr. Ashish Mittal
www.99doctor.com