Baby drowsy from Benadryl??

Alicia
I've been sick the last couple days. I went to urgent care and tested negative for the flu. My symptoms are chills (which went away), stuffy nose, headache, and sore throat. Basically feels like a head cold. Not to mention my ribs are killing me from blowing my nose so hard. Well last night I took Benadryl and today I haven't felt the baby move much. I've felt a couple movements but he's not as active as he usually is. Could this have anything to do with the Benadryl? I am drinking orange juice and I've eaten and he still isn't active. Please let me know if anyone has experienced this. I feel so guilty taking medicine but I'm suffering right now.