I have gained 25lbs in 3 months. Alot has happened during this time but i cant seem to pinpoint the reason?

I quit smoking January 1st, but the weight gain started around April, I have switched birth control pills and switched back in the last 3 months, I went to the dr. and have a blood test that read dangerously high choresterol levels(on Crestor now), I started having flashbacks of ual abuse which Im seeing a therepist for and dealing with, quit my job due to ual harrment. I went from 95lbs -4'11" - 120lbs and counting. After the first 10lbs I thought with all Im gooing through I dont need a weight issue as well. I have changed my diet to eating more fruits and vegetables, exercise 3 times a week, wholegrain etc...i used to eat lots of fast food, boxed and canned stuff without reading labels and now that Im more concious, Im seeing alot of hydrogenated oils and such in foods I used to eat- they are supposed to be really bad for you ive read but maybe they help you lose weight and lower chorelesterol??? seems fishy- anyways, any suggestions will be appreciated ty