concerned I might be developing eating disorder?

I know I do not have an eating disorder. yet. but Im definately concerned. I recently cut my calories and soda etc. I lodt 30 lbs in 5 weeks. I started one day just eating healthy to try and loose weight. I cut everything cold turkey.
Firsy I was eating cereal with skim milk, fruits veggies pretzels amd 12 oz of soda omly a day.
gradually I cut calories more and more. I dont drink milk anymore example bc i feel like its fatty. i eat a cup of grampola ceral without the milk. I feel guilty for eating fruits bc of the sugar. I dont even go near a banana bc of the fat. I dont eat my favorite snack, pretzels bc of the sodium. i quit eatint meats bc of the calories etc...
But now I am in kind of panic mode bc I will stick a fry in my mouth( I work in a fast food type restaurant) and chew it up and then spit it oiut. Ill have a bite of salad that has ranch on it and spit it out. put soda in my mouth andnot swallow it. I dont know what is goin on- its like an impulse and i am worried this may be the start of an eating disorder. need help/advice.s this a problem? Anyone have any experience similar?