The answer is yes and not necessarily.
It may be that you are not taking in enough calories in total. The body can think it is in starvation mode and hang on to the fat.
I have tried giving my body a good talking to and have told it that there is another meal coming sometime but it does not listen.
I have been thinking of trading it in for a new model.
But, for the moment, it is on recall having its metabolism adjusted by a low carb lifestyle mechanic.
You should be eating approximately
10-12 times your weight(lbs) in calories. For you that would be about
1800 calories of which you will find about 50%+ at least will come from fat.
Check your intake by using a free site called
http://www.fitday.com
You can plug in exercise values as well.
Smaller meals, more often is better. Have breakfast, lunch and supper. Dont go more than 5-6 hours without eating. Drink loads of water and yes EXERCISE.
But remember with exercise and the additional protein you are eating, the body will begin to reshape and muscles will tone. You will feel great but muscle weighs more than fat so you do not need to rely on the scales so much. Take measurements instead.
So, for me, I am much fitter since I added exercise to my regime and feel energised. My weight loss is a steady trickle.