Miller has been suffering with extreme fatigue after games and has had to spend much of the week recovering rather than training.
The results of the blood tests were described as an 'encouraging boost' by the League Two club.
Louis van Gaal looks certain to leave his position as Manchester United manager, paying the price for a disappointing second season at Old Trafford.
Jose Mourinho's long-anticipated arrival at Old Trafford finally looks to be here, but he is set to take over a
England warmed up for Euro 2016 with a 2-1 win over Turkey .
Louis van Gaal appears to be on the brink of leaving his role as manager of FA Cup winners Manchester United.
The latest gossip and rumours from the newspapers and online:Arsenal's ALEXIS SANCHEZ, Everton's JOHN STONES and Tottenham's DANNY ROSE are
Manchester United and Crystal Palace clash in the FA Cup final at Wembley on Saturday.