Hello, I Had A Root Canal Friday, October 30th. I

Hello, I had a root canal Friday, October 30th. I went in for tooth pain, thinking I would receive an antibiotic and then have to schedule a root canal. Within a few hours after the procedure, I started Amoxicillin. Four days later, I don't have tooth pain, but I do have headaches and a whoozy feeling in my head (dizziness). Should I be concerned?