Welcome to the forum bro,
Now lets sit tight in the boat because its a long ride
Yes you are right it takes about 10-12 for Islamabad to open up a file for initial review, and whether marriage is genuine or not they assess that during your initial review based on what proofs you have provided them so the best thing to do is to send them your call history, emails, chats, proof of vistis, gift receipts, money transfer receipts etc, which I hope you included with the initial package. However, it does take them a year to open up the file so you have to updated them with the above proofs voluntarily just before your initial review so after about 7-9months of file transfer. When you update them with any sort of documents, you will need to give them the file number so they know which file to put the documents into and that where you need your immigration file number. Before they used to send AOR which had file number written on it, but they don't sent AORs anymore so you have to email them to get that file number.
Expiry date on the medical is one year from when the medical certificate was issued, PCC expires on different dates some districts only good for 3 months, some for 6months, and some are good for one year. But by the time your file opens everything will be expired and you will be asked to provide everything again.
As for this website, you cannot attach your own picture, but on top if you go to 'profile' it will give you options to put in the flags or pictures which you can choose from and set you signatures etc...