Hey Paul. Sorry to hear about your sister's problem. I would have responded sooner, but my Stinking Slow PC wouldn't let me! When you mentioned the "Tingling" in the arm, I wondered about seizure activity. With our Daughter being 30yrs old and having seizure problems from 11months old until she was 18yrs old (when she had the left tempral lobe removed from her brain, which stopped the seizures).
Paul, you know that your Sister, You and Your Family have our Prayers. Something like this affects all. I Pray that they determine the type of Seizure she s having and what it will take to control them. There are alot of meds out there for the different types of seizures and they are coming up with new meds all the time. My heart goes out to you all, having been there. Please keep us up on her condition.
Take care, Bill