So, I started lifting weights this year, and I've been doing it for about 1 hour every other day, and so far I have yet to gain a single pound. I am still 6 foot and 150 lbs. However the funny thing is that my strength is clearly going up, the amount of weight I can lift has gone up ~20% across the board, so clearly it is doing something. My question however is wtf is up with not putting on any weight (which is the real goal). I guess its likely due to the fact that I am on a meal plan and only get 2 meals a day, but at the same time I lift weight for 3 hours a week along with running/doing drills for ultimate frisbee 8 hours a week, so I am almsot certainlly not getting the calories needed to gain considerable weight. But at the same time IF that were true than why am I gaining strength, I didn't have any fat ot begin with , so its not like I could be trading in fat for muscle, does this just mean I am trading in my slow twitch muscles for fast twitch or what?