micro,
I'm not a doctor ... although, I do pretend to be one down at our local Nymphomaniac Treatment Center ... but, I digress ...
It sure sounds to me like it is time to quit ineffectively treating the symptoms and go after the root of the problem, which I suppose means surgery, right? I'm in a professional client service business and I know all about the immediate demands that is part and parcel of such a business ... BUT, it doesn't sound like you have the ability to effectively serve your clients the way things are now, anyway ... SO, in the long run, it sounds like you and your business will be better off to bite the bullet and suffer through the downtime of surgery and whatever recovery time it takes.
Just my two cents.
B.