I am not a doctor and this is not medical advice.

Smoking -dilates- constricts your blood vessels and capillaries. Drinking thins your blood. After quitting your body is going to over compensate the other way for a little while.

Congratulations on quitting.

First off, good job on quitting! Keep up the good work.

Alcohol withdrawal can apparently cause high blood pressure. Withdrawal typically peaks in the first 1-3 days, which would match up with your observation that your BP was even higher at the 72-hour mark:

In the most severe cases, alcohol withdrawal should be supervised by a medical professional because it's actually possible to die from it. If you'd gone through full-blown worst-case alcohol withdrawal, you'd probably know it (and high BP would probably not be your most pressing concern). Maybe it's possible to get a milder case of alcohol withdrawal from a lesser level of alcohol use? That's pure speculation on my part, I can't find any source one way or the other as most are devoted to withdrawal from heavy alcohol abuse. If I were in your shoes I'd monitor my BP for the next couple weeks and talk to a doctor if BP measurements aren't trending downward over that time.

Thanks for the responses everyone. I will talk to a doctor very soon.

I'm not a doctor. I am a volunteer at an addiction recovery org. I see a lot of people starting their journey, and there are all kinds of responses to quittting, a few involve the ER. The only advice I would take here is "see a doctor"

Elevated blood pressure is a common alcohol withdrawal symptom, but it looks like 9 days may be a long time for this symptom to last. As you’ve already seen from others, talking to a dr is probably a good idea at this point (if you have the means to do so).

Yes

https://www.vinmec.com/en/news/health-news/general-health-check/quitting-smoking-increases-blood-pressure/

Fiber and low intensity exercise are listed as helpful.

Quitting drinking is a peculiar beast. If you were a "normal" drinker, you might only experience some mild mood irritation or have an issue getting to sleep if nightcaps were your thing. You might experience nothing.

If you were a heavy drinker and immediately quit, that can actually kill you. I am going to be realistic here: Ex-drinkers in my class of alcoholic could drink a few bottles of wine, or a case of beer or 5th of liquor throughout the day and then drink more after that, pass out drunk and then start the next morning with a couple of shots.

Alcohol withdrawal in those extreme cases can be deadly. When I quit, I was in bed for a week, with supervision, and had a detox center on speed dial, just in case. It's no joke. (I should add that my approach was still risky and stupid.)

But yeah, quitting anything that is addictive is going to piss your body off a little. Eventually, if you lay off the "bad things" long enough, your body will recover. You can see the full gambit with nicotine though: Agitation, higher BP, sweats, etc. It depends on your body.

Above all else, talk to a doctor. Everyone's situation is always unique and is rarely diagnosed properly over social media.

Please ask a doctor!

Mine would shoot through the roof out of sheer joy and excitement. Good for you.

Are you monitoring yourself at home? It helps to log it for a bit. Besides, your PCP will love the data. A word of warning though, low cost models may have a relatively small onboard storage of readings. Like ten.
I learned the hard way.

I would also be interested in this information

I'm inclined to say yes.

Alcohol is a depressant and going from heavy drinking to cold turkey is almost always a bad idea. It's one of those things you need to gradually wean yourself off of. Alcohol withdrawal can legit kill people.

Smoking... I've known people who have quit it by going cold turkey.

The below comment by @epyon22@programming.dev says it all, congrats

I'm not a doctor. I am a volunteer at an addiction recovery org. I see a lot of people starting their journey, and there are all kinds of responses to quittting, a few involve the ER. The only advice I would take here is "see a doctor"