Do the two go hand in hand? I do have a blood clotting disorder known as Von Willebrand Disease, but nonetheless, could a rise in petechiae come from lifting? if so, is there anyway to reduce it?

Resistance training can increase petechiae.
I would have a serious discussion with your physician.
Given your underlying condition, incorrect training could have some significant adverse effects on your health.
And best of luck to you my friend.
thank you so much! i have wondered, because i've never received any notice limiting physical activity from either my MDs or hemo, so i figured it should be alright.