Welcome to the forum and the wonderful world of snake keeping!!
If you could get a few pics up that would help us help you.
Try to get a few different angles, but a pic rom above with the snake laying on a flat surface will be most beneficial.
I actually just added a 4 year old male to the family last month. He's just under 1,400 grams. So yeah, quite a difference.
But don't let that alarm you. They grow at all kinds of different rates due to a high number of variables.
Oh, and P.S. many of us use the free app tapatalk to upload pics. Super easy.