Nanny Needed For 1 Child In San Francisco.

My daughter, granddaughter & I are traveling from VT to San Francisco so my daughter can attend the video game design conference at Moscone Center. G. is a VERY active 3 y/o who has not been apart from her mom more than a couple hours at a time. I have fibromyalgia & my strength & energy levels are unpredictable. Im looking for someone who can attend activities with us to keep up with G. if I can not & to give me breaks if needed. I also may need to support my daughter at Moscone if needed (brief periods). The hours are flexible and need not be full 9 am-7 p.m. We are staying at Inn San Francisco, so attending parks & child friendly activities in walking distance would be very helpful.