3 weeks tomorrow since I’ve drank

I was a binge drinker. Drank until I couldn’t hardly walk. Eat food and go to bed. Wake up hungover and do it all again. I was averaging 20 beers a night. In about a 6 hour span. I’m 3 weeks sober tomorrow and I’m still dealing with some issues. Mostly mental. The anxiety is causing health anxiety every little pain I feel like I’m having a heart attack. Blood pressure is averaging about 140/75 without nicotine it’s about 125-130-70-75. Yesterday I noticed my heart rate was 50bpm I used to the average of 70-80bpm. So I got worried and checked my blood pressure over and over and it got higher and as the heart rate got lower I got on google and was googling stuff which I don’t think I should do. I thought I had every illness under the sun. I just wanna know are these symptoms along with the daily headache and neck pain. Back pain.. I’m noticing pains more. Is this all normal and will it get better? I’m just confused cause I thought iafter I got over the 4 days of hell it would all get better.