If you can appear for the 1st PU examination then you may not get promoted to the 2nd PU so it can be a problem for you. Now as pandemic is going on, if you have medical grounds then you can show problems and disorders which is unavoidable then you college may consider.

To know more about the courses after 12th/2nd PU, visit the link below:

https://school.careers360.com/articles/courses-after-12th

I hope this answer helps. All the very best for your future endeavors!