Getting frusterated! :(

Are you tracking accurately? Some people tend to under estimate how many calories they're actually consuming.

If you aren't losing weight then you aren't eating fewer calories than you're burning. It is almost always as simple as that and no amount of water or exercise will change that fact. I can't see your diary to offer any specific advice. How accurate is your food logging and your entering of calories burned? What tools are you using to ensure accuracy?

TaurianDoll wrote: »

You could be gaining muscle. I know in the past, especially when I was training for a triathlon, it felt like I was always eating (healthy) due to burning so many calories during brick workouts (swimming+ running, biking+running) but the numbers on the scale didn't move (I wasn't looking for them to, just something I noticed). But all the while, I was building so much lean muscle.

Muscle weighs more than fat.

*dodges tomatoes from the super duper health crazed MFP pros who will refute this point*

::snickers and hefts a tomato:: Muscle weighs more than fat by volume. In other words, muscle is more dense than fat so a pound of muscle is much smaller than a pound of fat.

That said, unless the OP is eating at a surplus she probably isn't gaining muscle. It's nearly impossible to gain muscle while eating at a deficit. In my experience since I've started lifting while eating at a deficit, I'm losing weight more slowly while lifting heavy 2-3 times per week but I'm still losing.

Two weeks could easily be a natural stall due to hormones, sodium, hydration levels, ovulation, TOM, changes to your exercise routine, etc. You may not need to do anything, yet.

Opening your diary might help to get you more specific advice if you're comfortable doing so.

You're logging everything you eat? Including condiments, cooking oils, veggies, cheat days, etc? Are you using a food scale, measuring cups, or eyeballing your portion sizes? Most people can be off in their estimates by several hundred calories when they eyeball portions. Measuring cups are better, but a food scale is going to be the most accurate.

http://www.myfitnesspal.com/topics/show/1234699-logging-accurately-step-by-step-guide
http://www.myfitnesspal.com/topics/show/1290491-how-and-why-to-use-a-digital-food-scale

And make sure that you've calculated your calorie goals appropriately. Remember that these are just estimates. You may need to play around a little to find what works best for you.

http://www.myfitnesspal.com/topics/show/1080242-a-guide-to-get-you-started-on-your-path-to-sexypants
http://www.myfitnesspal.com/topics/show/819055-setting-your-calorie-and-macro-targets

If you're exercising and eating back your earned exercise calories, be sure that you're using accurate estimates of your burn. MFP and gym machines have a tendency to overestimate certain activities, which can cause you to eat back more calories than you need to. Even a heart rate monitor isn't 100% accurate. If you're eating those extra earned calories it might be a good idea to eat only 50-75% of those.

And there's something to be said for the fact that some people just burn fewer calories than the generic equations predict. If that's the case for you, you may need to adjust your calories a little lower until you start losing again.

Another theory to toss into the mix. Remember that your muscles hold water. Have you weighed yourself a day AFTER a full rest day?