[SmileyEH]

Jesus guys talk about over reacting. 7lbs in 2 weeks could be 5lbs extra food he's holding in his digestive tract because he's eating so much, 1lb of fat and 1lb of muscle. BW changes <10lbs after drastically changing your eating patterns are going to be almost entirely extra/less food inside you and increased/decreased water retention. If I don't eat much or drink much water/salty foods for a day I lose >5lbs. If I go from being too hungover one day to eat much to stuffing myself full of chicken and rice the next I'll gain 5.

Edit: If 5 11" 144lb OP goes on a diet of bacon and sunny D but goes to the gym, he is still going to pack on muscle.