Get thee to the doctor and don't mess around about it. Low lymphocytes could just be you've gotten depleted with a virus. But I don't like that low platelet count, most especially with the other. You need it checked out asap.
Platelets help you clot. When they're low you can have clotting issues which aren't good.
EW, stomp your feet all you want- we've all dealt with temper tantrums with our difficult children. We will just carry you to the doctor and give you ice cream after if you are good.