Headaches

Shelby • Happily married since 6/27/14, Connor Dean born 9/5/15
I gave birth by c section on 9/5. Today I was able to finally bring my son home. I've noticed the past few days I've had headaches on and off. Before pregnancy I've had maybe 5 headaches ever in my life.
Tonight for the past hour I've had a headache that Won't go away.  I just popped a Tylenol for it. I noticed on my discharge papers it says to watch out for headaches that won't go away.  My question here is, has anyone had something similar and what did you do? I'm debating if it's worth calling the after hours numbers about, I really don't want to go back to the hospital.