(Kinda tmi) hospital in WDs

So basically, tomorrow I have a colonoscopy, I could be at the hospital all day, however I only have shit H on me which is cut with something weird and it makes me feel drunk and dizzy, but its all i got to stay well during my procedure, it also wears off super quick and im gonna be at the hospital for 8 hours, I do however have a strip of 10mg valium and some hash on me but I dont like smoking hash as it makes me paranoid. Is valium enough to make the withdrawals less noticeable or painful? I have full blown acute H WDs so the hospital would definitely know and I cant be in that state at the hospital as im already anxious enough. I cant get hold of pregabalin rn either so im hoping valium is enough and a small smoke before my procedure.