Try magnesium supplements. Takes a while to kick in but does wonders for your energy levels
I don't disagree with this at all, but would like to point out that my (very good, holistic, NHS) GP said that if taken long term, rather than just for a few days, you could in extremis end up with too much of it, and it would be a good idea to measure levels before starting on it, and then again during routine bloods once on it. Magnesium can lower blood pressure (too much in some cases), and can interfere with other drugs, along with other mild and serious side effects and complications. Look it up at the Mayo Clinic website, search for magnesium, it's the second entry in the results.
I wouldn't see that Nurse Practitioner again, I'd complain about her attitude and see a GP. I don't think it is ethical to make blood tests conditional on having a smear or even go on about it during the consultation, as it is rarely going to be relevant to the matter in hand (although please do consider getting your smear done as a separate issue) and if they saw anything in your blood tests that would indicate you might warrant further gynae or cancer investigations they would tell you. Or even doing your home BP testing (essential to get done now morning and evening over a week as a PP said) first as this can be done in parallel given that it will take time to get the bloods taken, wait for the results, and then wait for a follow up appt.
Also even if you would like to bring down high blood pressure naturally, via exercise and maybe supplementation, untreated HBP can be dangerous both short term and long term, so it would be a good idea to start on any recommended medication, and bring down the dose with your GP's guidance once you are able to exercise more and/or are supplementing with magnesium. They will usually start you on a low dose and gradually increase it over time, if BP monitoring suggests it is needed, anyway. Defo get your thyroid checked out too, and get a copy of the actual results not just an "okay" which might mean you are borderline for hypothyroidism. Many GPs rely on the figures without really understanding fully what being inside or just outside the reference range can mean on an individual level and what to do next.
I am not medically trained. I do however have all of the problems you listed as well as others and I have been very lucky to have an excellent GP for the last 2.5 years while going through quite a lot of problems, although she has recently left boohoo.