leave us on 22th January 2009, a too short life

She left us dramatically on January 22nd, 2009, day of her 7 months old. We made her a light sedation for a blood test, Her heart does'nt support the stress and the narcose.
The initial investigations have shown nothing, either HCM, FIP, toxoplasmosis nor parvovirus. We expect more accurate results of the autopsy brain