Excruciating cramps started at 3am. Took two 500mg advance Panadol at 3.20am but did very little. Decided to take some ibuprofen just after 4am as well but it turned out I’d picked the wrong pack and they were a different type of paracetamol so I’ve now taken 4 x 500mg within half an hour. I’m absolutely terrified. Please please help