I do not ever remember having a tougher day. Feels like I am going crazy.
You stuffed poison in your body for almost 30 years. Your body did not approve of that shit.
Fight through this. This shitty period is your body unfucking itself. Drink water. Get some exercise. Get some seeds or gum to help with the oral. You may have some anger boiling over. If you need folks to yell at, this is the place. Not sure you noticed but I just love a good cuss session.
You can do this. I know that as truth. I did it. A whole bunch of men and women just like you and me have done it as well. You got this. Focus and fight.
You only go through withdrawal once.