| If your action is already high, I'd hold back on raising the saddles just yet.
Have you checked the bow in the neck?
Your girlfriend has difficulty playing your bass, does she also get the same buzzing? Have you tried playing her bass?
If you're having pain then this also points to technique - go back to basics, slow down play a single note, try and get it to ring with out buzzing - check you left and right hands notice how you are fretting and striking the string. (A little while ago I also used to get left arm pain, and discovered I was clamping the strings too tight, by relaxing my hand and experimenting with how lightly I could fret a string, this is now a thing of the past.) Build up slowly towards your normal playing speed, notice where your sound starts to degrade, try and see how has your playing changed. If all else fails try a couple of lessons with an experienced teacher; let them know about your pain before starting, hopefully they'll spot your problem very quickly and advise you. | 
