Having just lost our beautiful 18 month old girl to this, please be careful at the moment. It appears she ingested grass seed, this led to an abscess which in turn led to a very high temperature, then a blood clot that led to a coronary 
She was due to have surgery this morning to remove the abscess, but we weren't aware that a side effect of the abscess could have been a blood clot. Unfortunately she suffered a coronary before they could prep her for surgery.
She was our world, so please watch your dogs around long grass etc this season xx