Jim,
Have you thought of drugs, a lot of them?
You question is twofold, first, how to deal with you pain/disability and the ethical matter of revealing your condition to a prospective employer.
Your pain - at this point in time, I think your only relief will come from drugs. You could have tried an ESI or possibly pt but your supposed to leave tomorrow. I recently posted to Maria about relief from a lidacaine patch. It's an adhesive patch you place at the point of pain. I was surprised at how well it worked. Don't know if it'll help but it's doable by tomorrow. You could patch by day and drug at night.
As for the job, I have been both an employee and employer and am also a resident of California. As an employer I always asked prospective employees if they had any medical condition that might impact their ability to perform their job. I don't know if this is still legal but if you're dishonest, you could lose a lot and it's not worth it. If they don't ask and you don't tell them, especially with jobs so hard to come by, should you tell them? If you don't, then get hired and eventually have to go on some kind of state aid, that comes out of my pocket. If you don't and eventually have to leave your job, even temporarily but for a long period of time, you'll cost your employer extra employment taxes and benefits as well as retraining costs. Businesses are suffering all over. Are their profits enough to allow for more loss?
If you don't tell them, end up having surgery and return to their employ, will they still value your position? Will they terminate you for fraud... no unemployment benefits? BUT, if you do tell them, chances are you won't get the job and times are hard.
I won't tell you what I'd do. This is your decision and one only you have to live with. Good luck,
Dale