Lifting heavy = weight gain?

ok, so i have been on this consistant roller coaster of trying to loose weight, of trying to get fit, of trying to change my eating habbits, and lets just say i fall down a LOT, but i want to say i get UP even more! i am not trying to just lose weight. i want every muscle in my body DEFINED and TIGHT. i LOVE intense workouts, but when it comes to the lifting, i feel, in my heart, that lifting HEAVY is the only way to go! thats where i FEEL the burn. where i FEEL the soreness after. and my body is STARVING after. but i am a girl, i still have about 25-30lbs to loose and lately i have fluctuated between 5 lbs up and down UNABLE TO LOSE! ugghhh so frustrated!

i guess my biggest question is can i/should i LIFT HEAVY and still lose? the last thing i want to do is gain! i see super hot LEAN &THIN women who lift HEAVY, but they are at their maintance level so i get that. i still have quite a lot to lose and i dont want to build muscle over fat that needs to be gone<

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that is possible right?

HELP PLEASE!!!
thx

It depends how you fuel. You have to eat to gain muscle mass, unless you're starting quite over weight. Trust me, I've been trying to gain and haven't been eating enough, it's been really discouraging. Also remember, the most important part of your fitness isn't necessarily on the scale, the scale is just one of many tools that can be used to measure your fitness. I use calipers and a measuring tape.

You can build muscle under fat, and the more of that there is the more fat will burn.

I HATE the scale, its really a horrible thing to rely on to show results. The mirror, the way your clothes fit, measurements, those are much better ways of seeing results!!
Keep lifting heavy if thats what you like!! Unfortunately muscle hold about 3x more water than fat, so most people with muscle will weigh more than a skinny soft person.
But your clothes will look and fit better, muscles are healthy, sexy, and well worth the extra few pounds!

Everybody is different, you will need to play with your meals and calories to create a plan that works perfect for you!
With lifting your body needs protein at every meal! And you will need more calories than a sedentary person because your body burns more throughout the day (even on your rest days)
I say lift heavy, dont forget your rest days, get plenty of sleep and protein!! and you should start seeing some serious results if you stick to a plan that works for you. Give it some time though, results DO NOT come over night, it could take weeks for a scale loss, but you could be losing inches and burning body fat w/o seeing any loss on the scale, but you will see results in the tape measure, body calipers and the way your clothes fit! I promise!!

I lift heavy and am still losing. So its probably more diet related than the fact that you are lifting heavy since muscle will help to burn fat even when you are at rest. I am starving as well after I lift heavy but I still always stay within my allotted calories and I am still losing weight. :-)