Just tested positive

Started feeling crummy on Wednesday called my doctor and they told me sounded like Hay Fever.. had mild symptoms mostly feeling under the weather and plugged ears.. today I started a runny nose soo decided to take a covid test and sure enough came out positive. I’m not si much worried about my self but I’m a caregiver for my grandpa who’s 104 and I’ve been around him this week. So far he hasn’t shown any symptoms but I’m very nervous for him,