Hi Param,
I submitted by PP and documents on 10 Oct, did re-med on 17th dec, got med received line in the first week of Jan, but still no DM.
I guess you haven't got the med line yet, IMO you should contact CHC if you haven't already asking them politely, Is there any communication from there side or not. Reason is My initial med examination was on 1st Oct, till 30th Nov no news from them - sent them a letter, after which got a call that they sent me a re-med letter on 1st Nov which I guess is lost by the postal dept. So the letter was sent again, did re-med and got the med line added in e-cas.