Is this damaging my heart and kidneys?

[MrsGlum]

I’m experiencing severe withdrawal symptoms from going CT off Mirtazapine 5 weeks ago (long story). The worst symptoms are high anxiety and insomnia. My heart is pounding at a fast rate all the time. (85-90)
Even when I manage to fall asleep I get woken up with these heavy palpitations.

Do any doctors or other folk knowledge in this field know if this relentless high HR can damage my heart or my kidneys?

I’m so worried that even though I’m off the AD now its legacy will still cause me further health problems. I do have beta blockers to take but don’t want to be on these regularly as I know they have their own side effects.

I’m really scared

Um, it can be dangerous to stop Mirtazapine cold turkey, you're not supposed to do that. Whenever I get my Mirtazapine prescription refilled, the pharmacist makes a point of telling me every time to make sure I taper them and not suddenly stop if I decide I no longer want to take them. I would make an appointment to see someone.

Is this your heart rate whilst sleeping or whilst sitting, or walking? A HR of 90 won't cause you damage (for example, 130 is typical for exercise, depending on your age). It really depends on whether you have an underlying condition.

Do you do anything to help you wind down before going to sleep? Anything that can comfort you to relax and go back to sleep? Writing a diary, having set sayings, breathing exercises etc can be very effective as we tend to do well with little routines like this when anxious.

Whenever standing mine has been over 100 for 20 years due to a medical condition and it's not unsafe, if that puts your mind at ease at all.

@UmbrellasAndToadstools18 thanks for your reply. I had to go CT as I was getting excruciating joint pains on it, Miy GP said iit should be ok as i was on a low dose for a short time. I will make another appointment thank you.
I really wish I’d never started them.

@Nyfluff
This is at rest and presumably sleeping ( not that I get a lot of that).

I have to take sleep tablets to get any sleep because of my racing heart.

I really hope I haven’t brought serious condition by being on medication.

I've just been prescribed Mirtazapine for anxiety and depression, a months course. From reading this, I shouldn't just stop after the course has finished?

@HelpMeGetThrough no I imagine they can only prescribe a month at a time, so you would need to have repeat prescriptions each month, unless your GP specifically said to only use it for the month.
It makes me so angry that GPs hand these things out with no proper explanation as to how they might affect you. It was my first experience of being on an AD so I had no idea what I was letting myself in for. If I had I would never have started them.
Your GP may have prescribed yours for good reason (mine did not) but maybe you could ask if there’s something different you could take instead before it becomes too entrenched in your system?

@MrsGlum thanks for this. I'm going to speak to my GP and see what they are going to do after this course. I didn't get anything from them on this, when they prescribed them last week.