Hi..Iv Recently Been Put Into Cerazette For Endometriosis Which I

Hi..Iv recently been put into cerazette for endometriosis which I was in for 3/4 weeks but had to stop due to have side effects. Since then I was put onto Noriday which I started 3 days later. After 2/3 weeks in I started to take a sever pressure in my head and pain which I went to my GP about and was recommended to take a break from the pill for a few weeks until the pressure eased. Being a migraine sufferer I knew I wasn't going to be able to go back on it. Since coming off Noriday I'm experiencing discomforting pain in my belly button and around the pelvic bone, feeling of sickness and a dizzy/ light head. Is this normal after coming off noriday?? Or is this my bodies way of telling me the endometriosis is flaring up?? If you could get back to me about this asap it wud be greatly appreciated!!