I had it back in March/April, it hit me pretty hard. I thought it was just a cold to start with so when it got a bit better I went back to work (ski instructor), after three days back I was feeling like death. I had a week in bed barely able to swallow my own saliva or speak, then a few weeks feeling moderately shitty, then a another few feeling a bit tired.
Make sure you don't push yourself too soon, if I had not gone back to work I would probably have got better a lot quicker. After I realised I had it I just drank lots of water and tried to sleep as much as possible, ibruprofen helped as well.
Good luck, hope you have an easier time of it than me.