Hi
I appreciate that you reach out with your concern
With given information right now you are having some viral fever which made your condition like this
This needs to check with general physician
Regarding your excessive worries about studies..,...if you are finding the following symptoms like being unable to focus, sleep, enjoy life, multiple thoughts running in your head .....then connect to a registered psychologist for proper diagnosis and therapy
Next Steps
You can book an appointment with Rupali Mohbe at Practo
Health Tips
progressive Muscle relaxation (watch on YouTube), deep breathing and exercise will help you