Talk to your doctor about the possibility of having the pre-med destressing drug before you actually arrive in hospital. I've never heard of it happening, but I don't see why it shouldn't, especially in a case like yours where you will not get to hospital without something drastic like that.

Or, you know, *A* pre-med destressing drug, even if it's not one like the usual in-hospital one.

Talk to your doctor about going private somewhere that will let you have someone administer the pre-med at home and take you in in a private ambulance? I'm guessing madly here.

I think talking to your GP is key though. Your GP wants you well - no tjust degallstoned, but well.