Hi Special K

The only way to tell what is really happening is to wait a year and see if you get any periods - from what I've read it can take a while for them to come back after a Mirena is removed, even if you are not peri-menopausal (perhaps someone else can help here...?). As you haven't had a natural cycle for some time it is difficult to know.
What did the FSH/LH tests show?
If your blood pressure is fine now and the doc has said it's OK to go back on the pill then why not do so if you felt well on it? ALso if you'd rather not go on the traditional CCP there is another one called QLAIRA that is fairly new and prescribed for peri-menopausal women as it contains estradiol - the same type as in our bodies, rather than the synthetic stronger oestrogens. Also it has only 2 tablet free days - preventing the pill-free week and the hornonal crash of the traditional pill.
Are you getting flushes and sweats?
Intense hunger - perhpas you need to change your diet? Reduce sugars drastically ie sugary drinks, juice, cakes, sweet cereals, sweets etc, and also reducing refined carbs (foods containing white flour eg white bread, pastry etc). Increase low fat protein at all meals if you can and vastly increase fruit and veg, and try to limit processed foods so you cook from fresh ingredients. Protein makes you feel fuller for longer but if necessary eat snacks before you get to that stage - nuts ( not to many!) fruit, cottage cheese, natural yougurt, semi-skimmed milk etc.
Hope this helps

Hurdity x
PS Edit - have said some similar to Dancinggirl whose post appeared as I was writing mine so great we agree!