I don't believe cutting your Nolva short caused you to lose weight.
Looking at your diet, I see the problem right away. You are relying on too many shakes (4 a day) for your intake of protein and cals. Personally, I would only have a shake for PW, and one prior to bed. On non-lift days, only have one shake prior to bed if you must. Replace the other shakes with whole foods. Look into lean meats (beef/chicken/fish), egg whites are easy to prepare or take with you. For your carbs get some oatmeal in there, morning time and in your PW shake. Look into other clean carbs (whole wheat/brown rice/veggies). Maybe add some flax oil/fish oil/raw almonds to your diet.
Just because you are consuming 396 grams of protein, it does not mean you are getting enough carbs and cals in your diet. And, obviously this is the case if you're losing one pound a day. Lean proteins may only have trace amounts of carbs (unless your breading and deep frying) which I hope you're not.
Over at bb.com, there is a calorie calculator that you can plug your stats into and it will tell you roughly what your cals should be at.
Hope this helps.