Weight loss stall and in need of advice....

OK MFP Peeps! I will give you the run down on what is going on. I have been on MFP since May of last year and have lost 35 pounds. I am currently 143 pounds and 5 feet tall. In these last several months, my weigh loss has totally haulted. In January I weighed 140.8 and have gone up and then back down again since then. Last time I hit a stall was in October and I changed my diet radically (mostly raw and lean proteins) WELL, after I got a head cold and sinus infection in January, I was at my lowest weight and was actually very pleased! I wan't working out all that much because of snow and sickness, but I stayed on top of may cals 1300 total.
SO- here we are in almost APRIL and I have really been trying to figure out why I am stopping in the weight loss area. I have lost inches in the last month because I just finished month 1 of INSANITY. On top of doing insanity, I run and play soccer once a week. What I struggle with now, is what to do about my diet. I spent 4 weeks eating around 1700 a day (that was eating back most, if not all my work out cals) people told me I wasn't eating enough to fuel my body. Mind you inches are great, but I can only tell of that inch loss because my pants are falling off. My belly still seems bloated and pushed out and I don't feel slim or fit, like at all.
Am I eating too much? Take a look at my previous food diaries (not today obviously, it's eater weekend) I do have a cheat day once a week. Maybe that's the problem??? I have had a few days in the last several months I wasn't eating super great, but I usually eat a very balanced diet and don't feel deprived or starving. I eat alot of healthy veggies and fruits... I just want to FEEL like I am fit and the tricks that worked before, aren't working anymore. I start INSANITY month 2 on Monday and hear it is really hard, so I guess I should eat less and always have a deficiet????????I AM HUMAN! I WILL MAKE MISTAKES! But, I know I sound like a whiny brat. I have accomplished alot and am proud of myself, but I am getting discouraged for how hard I have been working! Advice would be greatly appreciated, and please don't just say "eat more" or "eat less" please be specific!