do you have a sympathetic GP ? sometimes they can prescribe something-not too strong- to get you over this period, its easy to say dont do anything stressful but not always so easy to put into practice. Treat yourself to something nice just to cheer yourself up a bit, be it a bottle of perfume, a visit to the hairdresser, the theatre, a day trip soomewhere, something if you can, to give you a lift.
Sorry I am presuming you are a female, if this is not so my sincere apologies just adapt the list to suit.
Hope you are soon back to your old self.