Covid Ended or not. Will i go or not?

I got my first symptoms with mild cold on 1st August Night, then in the morning next day, I started feeling something is happening inside my body, in the evening on 2nd August I got low grade fever, which was gone after few hours, on 3rd August, I tested positive, I didn't get any symptom other than scratchy throat & cold, till 7th Evening. I was feeling well till 7th Evening, on 7th Evening, I got sensation that i will get the fever, but I didn't get fever, but my body start feeling weak, At present I have lower back pain sometime, some weakness. Just I want to confirm that Am I recovered from Covid or Not? Can I Retest Myself with Antigen Test tomorrow? I have to go more than 200km by train on 13 August for Important Exam. Will I go or not?