You will get the mass back if you
A. Continue to eat clean and hard. B. get back in the gym and lift hard. C. sleep hard
Once you cycle off the kre-alkalyn continuing taking 2 capsules pre workout and 2 postworkout with your whey and fast acting carbs. If you have a hard time getting to food throughout the day look into a good mass gainer like MHP up your mass.

You need to be consistant in you workouts. Muscle is hard to gain but easily to lose. No need to cycle off protein either. Keep you diet clean and your workouts hard and consistant.