Just looked up other symptoms of stroke besides aphasia and here are the ones that I have had that were caused by the RSD:

•Numbness or tingling on one side of the body
•Trouble speaking or understanding others who are speaking
•Problems with eyesight, including decreased vision, double vision, or total loss of vision
•Sensation changes that affect touch and the ability to feel pain, pressure, different temperatures, or other stimuli
•Changes in hearing
•Change in alertness (including sleepiness, unconsciousness, and coma)
•Personality, mood, or emotional changes
•Confusion or loss of memory
•Difficulty writing or reading
•Loss of coordination
•Loss of balance
•Clumsiness
•Trouble walking
•Dizziness or abnormal sensation of movement (vertigo)

That's actually a lot of them as it turns out. All of these things can happen as a result of the RSD...but they are serious enough that you should definitely make sure she gets checked out for anything else that could cause them.