Pain after long practice sessions?

[outin]

"Bach never hurts", she likes to say. And it is true.

Or not...my thumb always hurst after some Bach...

[stor314]

We must repeat a section - sometimes only a bar... - only along more or less 15 minutes.
After that, we must go to another music, if possible with another caracteristics.
After more or less 15 minutes of practice with the same thing, we gain nothing else.
There is a thing named PPI (past practice improvement): our gain occurs after and not during our practice. That`s why something difficult for us today turns less difficult the day after, after sleeping.
Also that`s why to study 2 or 3 or even 4 compositions, with periods of 15 minutes, each day is better than to insist in only one. You may wish to try this method. You`ll see how much you progress.

I will definitely be doing this whenever I get back to playing, Thank you very much.  It was very naive of me to think practicing the same section for hours on end would be beneficial to me, now I know better.

[stor314]

But all these problems are best cured by first resting the problem place for the nerve inflammation to settle and then correcting how you do things.

That's exactly what I will be doing, I am taking a 2-3 week break and before I start playing again I will have a proper bench to use.  Thank you for all you help Outin, It is greatly appreciated!