Panic attack

so i had my son nearly 8 months old and when he was 6 weeks returned back to work (working from home )and i have a important business trip to Vegas in February and this will be the first time i leave my baby and i am having trouble just thinking about i am scared of covid and just not being able to hold my son for 4 days it's literally giving Panic attacks my therapist said it due to my history and losing my twins at 37 weeks i have a fear of missing his milestones i talk to my therapist she thinks it would be a good thing for me but i don't see how it would any mommy stil struggling with postpartum separation anxiety and PTSD due to the struggles of infertility