I'm not on FB but I may create an account as I'm feeling pretty alone in this situation currently!
Your experience sounds awful, I've been in the fortunate position that close to where I live is one of the best neuro units in the UK.
I was on holiday with mine (3 nights in to a 17 night trip), and I went to the drs after having a night of hell with my leg - I was expecting to produce a small child out of my leg at one point - it was horrendous and that left me numb from the bottom of my arse to the back of my knee for the entire trip.. I was told that this was normal for sciatica. Then we had an 8 hour flight home and I went numb around my groin on my left so went to my GP who told me I had no reflexes on my left leg and packed me off to A and E.
I was scanned at 1 in the morning and told at 2 they were operating. I've been incredibly lucky as my spinal column is larger than the average persons and my surgeon said without that it was so bad I would have been paralysed. Recovered well after the op, went home and slowly the pain came back after a few days until I realised I was going numb on the right side of my groin - back to A and E again - admitted and scanned and it was worse than the first time - immediate surgery. Here for 5 days then went home last Tuesday evening, had a lovely sleep in my own bed and woke up on Wednesday morning and had a stretch - bastard pain came back immediately. There were quite a few tears at this point. So back to A and E again and scanned and it has happened again.
Apparently I have a defect in that particular disc which is allowing the disc material to come out easily, so this time I have had extra bone taken out to give me more room in the column so that if it goes again it shouldn't create the CES. Next step is a fusion but they didn't want to do that under emergency surgery so if it goes again I will be having that. I genuinely can't take any more, I'm in far more pain in my back than I was with the other 2 and the morphine isn't cutting it so I'm can't get comfy, however my left leg doesn't feel as numb as it has done and the pain is gone (lots of odd feeling but the nerves have gone through a lot).
I've been treated amazingly well in hospital by everyone I have met, and that's really helped and I trust my surgeons to do what's best but it's been a really shit couple of weeks.
Glad to hear that you're doing very well in the main, I've not spoken to anyone else that's had CES so it's nice to have found you!
Sorry for war and peace and thank you for asking after me!!