Lextra I'm amazed at the attitude of some of the people on this site now. Years ago it used to have kind, supportive, intelligent people and I'm sure some of them are still around but the site seems to have been taken over by ignorant bigots. Nobody here knows why you have been off work or what the cause was but I do know that some of the stunts pulled by employers are beyond the pale, you only have to look at the reports of employment tribunals to realise that.
You can't take annual leave when you are off sick, it's not possible.
Take care and I hope you feel better soon.