well, if your doctor doesn’t have a lab that she would use for this, there happens to be an anylabtestnow there where you can be drawn – I use that site really often for people living in the NE.
Remember that a clinician must order the test – you can order the kit but you’ll need her or me or some other clinician to order the test itself. That lab is very familiar with the western blot kits.
I doubt that tugging and pulling is causing anything but you might want to stop, just in case.
When was the last time you had a different partner?