Why exercise is important despite consistent weight loss!

So I have been consistently losing weight or at least not gaining...thing is...I'm not doing anything for this to happen...as a matter of fact I have been pigging out on sweets and indulging more than occasionally on taboo'd food....am I stressed? definitely but what else am I doing? I have been walking more and am all in all more active...exercise? NO not in weeks.....and I've been too broke to buy all healthy foods and I'm still doing ok. Now since I have shed 24 lbs I no longer am able to consume in quantity what I previously consumed...not even close. I eat a handful of a chips and I'm satisfied whereas before I would eat the whole bag and then some. I also get full before I'm done with a simple kids size hamburger and sm. fries and I probably consume less calories now than I did on my meal plan...now are they my healthiest options? NO.....however I'm not completely in the red....I do shop at Sunflower so when I say chips I mean the 'Boulder Canyon' all natural gluten free variety and when I indulge in a pop...I'm taking about Hansens All Natural Pop w/ Cane Sugar vs. HFCS (high Fructose Corn Syrup)....so what am I trying to say here???? I still need motivation because as refreshing as this effortless weight loss has been...I'm not as defined as before....I started noticing my body become firm and nice but now I jiggle and look crumbly in my legs...and my stomach...ick!!! It looks like I just had quintuplets and just hangs in it's wrinkled glory....gross!!!!

So I have to motivate and get my stuff!