Some of that weight is no doubt temporary water gain. (www.sparkpeople.com/community/ask_the_expe
But I will say that we, especially women, do not gain muscle weight that quickly. We just don't. :) Unless you've been training for a long time, it's unlikely you gained 10 lbs of muscle. (Check out this discussion: www.sparkpeople.com/myspark/messageboard.a
Most likely your weight gain is from extra caloric intake, although we can't really provide specifics because you haven't entered any information in your nutrition tracker. It's hard to provide specifics without more specific details about what you're eating. You DO need to eat more to support heavier activity; if you felt bloated, then you were likely eating the wrong foods. This series of articles explains why: www.sparkpeople.com/resource/nutrition_art
I know that you say you've only increased your intake a little, but unless you're actively tracking and weighing and measuring, you don't know that for sure; Human beings as a general rule underestimate their intake when eyeballing it. If you don't want to gain weight... I know you don't want to, but you may HAVE to weigh and track.
I also don't understand why you can't up your protein, or why you'd want to; eating more protein won't necessarily stave off weight gain, although it may be necessary to help recover after a hard workout. As far as I'm aware, vegetarians can eat protein too. There's more sources than soy.
Anyway, how many calories are you eating each day? The way to keep weight gain away is to eat fewer calories than you burn, although losing weight while training heavily is probably not a good idea, given your goals, as it'll make your training harder. Not impossible, just harder. I would suggest eating a maintenance level, at the very least... although I 'm NOT a dietician, so I would ask a more professional person for a second opinion.
Edited by: DRAGONCHILDE at: 4/17/2012 (19:49)