they had to cut my biceps tendon, trim out the damaged portion, and pin the remainder into the bone of my upper arm. Unbelievable pain...and rehab took close to 6 months before I had full use of my right arm again.

That's why I'm trying to avoid surgery on all the other damaged tendons.....

I was wondering when you were scheduled. Call & ask your surgeon if there's anything they can give you to help with the anxiety before the surgery - like a few hours beforehand? I assume they're going to be working under local anesthesia (not knocking you out). Maybe something similar to valium or ativan to make the day more bearable for you??? There's no reason to be completely stressed out if they can give you something to help...