Which pill is best?

Hello,

I have been on Loestrin 20 for a couple of years now but how do I know if it is still the right one for me? I don't have massive side effects but sometimes I get really weird cravings and nausea. Therefore I wonder if I should change it?

I'm thinking of talking to my GP about it. If I decide to change, can I still get the new type of pill from The Online Clinic?

Finally, is it normal to have to change the contraceptive pill after a couple of years?

TY