I take panadol when I need to. I had a horrible toothache and infection during 2nd tri and i had to take panadol every four hours for two days. Dr said it was safe, as paracetamol is very safe during pregnancy, just don't go over the recommended dose.

How much water do you drink each day? Do you take vitamin supplements? Are you eating fresh fruit/vege each day and are you getting enough sleep? If I don't drink at least 2L of water a day, eat fresh vege/fruit at least once a day, and don't sleep enough I get killer headaches. It's never really been like that, only since being pregnant. Also, i find if I don't take my vitamin supplements regularly I get really yucky, nauseated, and run down, which usually leads to a headache. It's usually got most to do with bub taking everything out of us and leaving us with nothing (nice huh!). Make sure you're looking after yourself and take it easy!