Your application is in a good state to get visa approve since they have asked for your medical request ... 5 months since then is too much ... I will advice you to send a message to them through webform ..they requested for it,
they told me that i am requested to send them the medical report within 30 days. I sent them but still it is under process. it already takes over 4 months, whereas the official processing time frame for our country is 4 weeks. so brother can you tell me why this is happening! why they are taking that much of time after asking the medical report also?? and if they finally give visa then that will be for which intake may or september??
You have to defer your admission to the next intake September ... contact your school for defer