I was diagnosed with mono five years ago, at the ripe old age of 37!
My doctor thought there was no way it was mono. I had a raging infection in my throat that would not respond to antibiotics, so they ordered the test. When I showed up at the hospital for the test, the technician took one look at me and said "You've got mono. I'll run the test, but I already know you have it."
I missed about a week of work, and 3 weeks of hockey. I should have taken more time off of both, but with a family to support, that was not an option. As it was, when I was at home, I did not move from the couch. Rest and fluids are the ticket.
Even after coming back to work and hockey, I was not the same for a long time (months).
You are young. Take the time to heal. It will be worth it!
Were you coming to NH for the HNIB tourney in Salem?