Low fat before this - not alot of protein & no exercise!

My body is probably in shock!!! with all these new changes. I know everyone is different - just makes me alittle jealous that a girl I work with has lost 30 lbs in 3 months - no exercise, salty foods, atkins candy bars & not alot of veggies and here I am puttin' along being the good girl & not seeing any scale results - it really sucks!