I guess Im supposed to be SICK

Ok my first day of being a plant eating, whole grain eating, no sugar eating, no processed food eating fool was a SUCCESS....I feel great! Let me rephrase that last statement, I feel great minus the headache; which i'm guessing is from the fact that I am addicted to CAFFEINE and SUGAR...other than that Im feeling at the top of my game.
            I see only a few problems with being a Vegan. #1 everyone around you is NOT, so it will be a challenge to live in a world that is eating all the things you used to be an addict to. My everyday menu would consist of maybe; COFFEE before my eyes even were fully open accompanied by a processed cereal for breakfast like lucky charms with almond milk (only cause I'm slightly lactose), a snack would be the bread and tons of butter I would eat at work, lunch would be something I ordered from one of the worst restaurants to eat at which was usually something with pasta lots of butter and a whole chicken (they are known for ridiculously large portions and high calorie content), when I got home I needed some more sugar so I would snack on a greek yogurt with fruit, dinner would be something like chicken fajitas wrapped in flour tortillas and topped heavily with cheese, sour cream, and bag guacamole, dessert (yes Im not this big for just any reason) was usually ice-cream or maybe a Starbucks Frapp, or a trip to Yogurt-Land. Its not a shock to me why I am so heavy and lathargic, it wasn't that I was in denial to my weight, I was in denial about having to change my lifestyle, I thought maybe I could just excersise a few times a week and then I would drop the weight. Wrong! The more I tried to do right by excersising I would get frustrated even more cause nothing would happen and then I would give up and in order to mask my saddness and feelings of failure I would, EAT!!!
      #2 Everyone says its going to be sooooooo hard and Im probably going to get deathly ILL....ok here is my question to those ppl, If I wasn't sick eating like a pregnant elephant whyyyyyyyy would I be sick eating ONLY whole and natural foods. It kinda makes me sad. For years I had eaten like a savage beast, devouring everything in sight like I had never eaten in my life and didn't know where my next meal was coming from or if it would even happen...so why would taking all the bad stuff out of my life make me so sick? Whats that all about? And how come no one said anything about my eating habits before I started all of this? Like "hey just a heads up YOU'RE KILLING YOURSELF!!!" I guess, its taboo, its a touchy subject, or its politically incorrect would  have probably been one of the reasons. So with that said I appreciate all of the encouragement and kind words its the fact that Im supposed to be sick is what gets me. Im already sick, Im overweight and I feel like death. I'll take my chances as a Vegan.