I returned to work 3 weeks after my cold turkey and can relate to your fears, mine had an added component of shame because I entered a detox facility when I left work but walked out the first night when I saw what they were going to do to me. My boss and co-workers probably thought I was a drug addict who was trying to beat the system by saying I was going to detox but still using drugs because I left.
I know how scary it is to go back there but each and everything you've mentioned is the drug talking and each thing is manageable when you take them on one at a time instead of throwing them at you all at once. The drug is trying to build all of this up in your mind but it's your job to break them down to their easy and manageable components, can you do this?
As for the shaking, no one can see it, you look perfectly normal on the outside, no one will know you're screaming on the inside. People will be able to see that you're not as outgoing as you used to be but they'll understand when you tell them you had a terrible reaction to a medication your doctor prescribed to you and its taking a long time to recover from it.
I was a nervous wreck too but I found ways to cope, I'd go into a bathroom stall when I couldn't be around people and I went for short walks around the building. I told two co-workers I trusted what was really going on with me and asked for their help when things got too overwhelming and they looked out for me.
You're going to feel so much better when you face your fear because you don't want fear ruling your life. You're going to feel a sense of satisfaction because you did what you needed to do even though it was hard. I'm excited to hear about your first day back at work tomorrow.
