I’m 18 years old and have had my period since I was 13. My periods have never been regular and sometimes I will go 2 months without having them. I got mine today and the pain is so unbearable! I’ve taken painkillers and gotten into a hot shower and then laid down with my electric blanket on my back. Literally nothing is working! I keep feeling sick and it hurts to move. On the odd occasion i will feel dizzy. I don’t take contraception and I’ve not had sex. Is this normal? Is it worth booking an appointment at the doctors?