If your doing this naturally, there is NOWAY you could possibly put on that much muscle on in 34 days. Most likely, most of your gains you have made is water and fat. Realistically, if your natural, you should be aiming for about a 1 pound a week. The only two situations i could think of where this would be fiesable is if:
1. Your new to training, and your a genetic FREAK
2. Muscle memory, you've been at that build before
"If your training naturally, you can't force muscle on, it's a long process, consistency is key"
my advice to you is to figure out your maintance calorie intake, add 500 er so calories on top of that. Every week weigh in. If your up in weight, continue with that calorie intake. if your at the same weight, up the calorie intake another 250 to 500 calories. This process will allow you to maximize lean mass gains, while keepin fat gains at bay.