Constant headache/head cold for 4 days...

I've had what feels like a head cold for 4 days straight, it's the worst feeling in the world! I've got a blocked nose, and excruciating headache, that tends to swap between sides every day!
Im 25 weeks pregnant, and haven't been to the doctor because there's nothing I can take really except paracetamol, but Jesus Christ I feel like I've been kicked in the head repeatedly by a horse. 
Any other women had this or having this? When did it go? It's seriously affecting me when I do anything!