How much should i be swetting after a 1km run?

i just started running twice a week the past few weeks to get fit, im 19, 176.8cm tall and i weigh 60kg. my mum and my sister said i was swetting alot more than a normal perosn would and my mum said i should be carefull because i have a heart condition. could i be over loading my heart. how can i find out