not loosing weight - only 5 lbs since first of january

First and foremost, I would encourage you to discuss your goals and how to reach them more in depth with your doctor, or a nutritionist they recommend, as it sounds like you have some thyroid issues?

In the meantime, I encourage you to take a look at this thread about accurately logging, it also has lots of great tips that will make logging easier in general for you. Inaccurate logging is oftentimes the root of the "it's not working" problem, but it does sound like you have a different situation going than the average joe:

http://community.myfitnesspal.com/en/discussion/1234699/logging-accurately-step-by-step-guide/p1

First there is no such thing as eating too few calories to lose weight. There is such a thing as eating too few calories to get the nutrients you need to be healthy but even that will not prevent you from losing weight. If you are not losing weight there are only 2 possible causes:
1. You are retaining water If this is the case you will see it correct itself fairly soon. Sometimes your body attempt to hold onto water to compensate for muscle growth or hormonal imbalances. Both of these can cause a temporary plateau (days not weeks)
2. You are not logging your calories or your exercise correctly. People underestimate their calories by 50% on average and over estimate their exercise calories burned by about the same amount. Are you weighing everything? Yes everything. If you eat things that you do not know the exact weight and calories for by gram then you set yourself up for under estimating your calories. Weigh everything, don't cheat but if you do weigh and count that too. Cut whatever calories you think you burn through exercise in half. Machines are horribly inaccurate and walking for one person might burn 15 calories and the same walk might burn 30 for someone else. In all things error on the side of caution.

Now I know it seems unfair that one person can eat fast food day after day and not gain a pound and another can eat salads and gain 10 but we are all different. Your body needs a different quantity of calories to fuel it than the next person does. Hormones and medical conditions can make it so that you need fewer calories to function and thus put on weight when another person would not. They also can make it harder to resist temptation. These things are just part of what make you, you. None of us became overweight without experiencing challenges that we let win and none of us will lose weight without finding a way to fight our own challenges. Try to focus on running your own race.