I didn't do medical for second time..just they issued med request on june 2017 but i got and done on feb 2018In case of remedicals, based on what I have seen on the forum, 10 days is the max to approve it from the date they receive the medicals. Considering you are an April applicant, you should get a PPR request this month. Suggest you contact them again since they are over the normal processing time in case of your application...