I had high blood pressure during all of my pregnancies. It always went down after having the baby. After the last baby it never went down. My blood sugars were also out of whack and so were my horomones. I was an absolute mess. After 4 months on keto I was no longer pre- diabetic, I was off of blood pressure meds and my horomones had straightened out.
There are many ways to "do" keto. I stayed under 25 g of carbs per day. I ate a ton a non-starchy veggies, meat with every meal and moderate fat. I think people get wrapped up in the mindset that keto has to be a high fat diet, but it doesn't have to be that high in fat. A lot of veggies is important especially for your gut!
Carb Manager is a great app to help you track the amount of carbs you are taking in, and if you pay just a little bit for a subscription there are a lot of GREAT recipes that you can tap in to.
Most of the time I kept it very simple. For breakfast I usually had a vegetable medley with brusselsprouts, red pepper, asaparagus and 2 pieces of chopped bacon. Also an egg. So tasty and satisfying! Of course change the veggies when you want to with that. Mushrooms go great with it as well! For lunch I usually had some chicken over a bed of greens. I used a vinaigrette or ranch and put a lot of keto friendly toppings on there like different veggies, cheese, everything bagel seasoning (in moderation), etc. For breakfast and and lunch I didn't have to plan much- just keep a bunch of vegetables around and some bacon or sausage. I'd cook the chicken or pork at the beginning of the week to eat in my salads.
After being on keto for a few months, I no longer felt the need to eat breakfast so I eliminated that and fasted from after supper until noon the next day without problems.
Supper took more planning. Chicken parmesan made with almond flour and no sugar added sauce over a bed of zucchinni noodles. Tacos with low carb tortillas, roast, breakfast bakes, crustless quiche, hamburgers without the bun. There are just so many things you can eat and none of it has to be complicated.
As someone mentioned earlier- make sure to be taking electrolytes. Keto puts your body into a different metabolic state and you will shed water like crazy, and along with that water goes your electrolytes so you'll need to replenish daily or you will likely have some nasty effects like nausea, muscle weakness, extreme fatigue, bad breath, etc.