Buddy i think u are the same person i have replied before also....
Dont google ur symptoms...
Its sciatica ofcourse...
Next Steps
better take more bed rest..
sit straight during ur online classes
take LS corset belt for ur back to keep it straight
Health Tips
u can do hot water bag fomentation and can take DAN-MR tablet 2 times for 2-3 days..still if not getting relieved then consult orthopaedician either by video call or in person