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I will start off by saying Im 22 and not someone who does any exercise tbh. I was on 120mg of propranolol for about 2 years prior all together I was on it for about 3 and half with a gradually increased dose for pounding heart, fast heart rate and skipped beats.
So my symptoms started about a month ago I'd taken my normal dose of 40mg propranol at 11pm I noticed my heart rate went to 48 bpm and I was feeling nauseous. My heart rate normally is at 65 whilst on the BB (literally the day before) without it is around 73 whilst resting. I thought nothing of it but noticed it kept dipping under 50 the following morning and whilst walking briskly it wouldn't go over 75 and I was getting lightheadness and breathless.
So I decided to wean myself off my tablets which was a big thing for me as anytime before my heart would react strongly to just missing one dose. So I went to 80mg a day noticed it went slightly up to 55 then a day later is was back to under 50 so reduced again. Nearly every other day I was reducing as my heart would still go under 50 even on just two 10mg a day i was getting feelings of sickness but my heart rate would go now if walking so I wasn't getting breathless anymore.
As of now I'm completely off the propranolol for 2 weeks now which I'm really happy about but my heart still drops to around 62 whilst sitting and around 56 whilst lying down i can always tell when it's beating so because I get a funny feeling in my stomach. I'm just wondering what could cause my resting heart to drop by 15 all of a sudden and make my tablets that id been taking for years suddenly too strong.
If i get up and walk it will go to 120 the other day it went to 160 but I'm assuming it's because I came off my tablets so quick but I feel fine all in all its just my heart will still keep dropping into the 50s when before it would be 73 ive spoken to my doctor he says it's because I'm young and fit but I do not exercise and the drop in rate is very sudden
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