Hi Faiz
Apologies if I am intruding; but I thought I could try to answer your questions.
1. To get an updated estimate current CHC-London processing times, refer to this thread:
http://www.canadavisa.com/canada-immigration-discussion-board/london-chc-applicants-tracker-t50978.105.html
2. my guess would be 1 - 3 months.
3. One of the forum members here has posted one of the medical forms, which I think will give you an idea of what the tests will involve. http://www.numberonehealth.co.uk/dynamicdata/file/CanadianMedicalReportForms.pdf
N.B. This form looks quite obsolete, but it gives you some idea anyway.
What did you mean by 'how flexible the doctors are'? They will record your answers, results of the urine, blood analysis, X-rays and findings of their own general test and will report these by filling out those forms and sending the X-rays to CIC.
4. I do not have an answer to this question
5. So, you did 17 years of full-time schooling and earned a Master degree = 25 points towards the points test.
Hope this is useful. // OB