Road to Recovery - Small Setback

I was hoping to go home today but there where a couple setbacks today which means I am staying overnight and hopefully getting out tomorrow Friday the 3rd.
I had my pacemaker installed a few days ago and yesterday they put a drain tube into my chest area as there was a bit of fluid they wanted to drain, this is fairly normal for Open Heart Surgery. For both of these reasons they need to thicken my blood up a little bit so I would not bleed too much during both procedures, so they had to ease off on my blood thinner medication. Now they are trying to get my INR back up to around 2-3 (the higher the number the thinner your blood). I am not quite there yet but should be by tomorrow.
The second hiccup is my heart started to beat irregularity again. It was pumping a nice 60-70 beats per minute for almost a week and then on go home day it decided to speed up and beat irregularly. They are tying to deal with this using medications and said this can happen but still I felt like was moving backwards and not forwards in this area. As a cause of the higher and irregular heart beat I don't feel as energetic as before but hopefully this gets sorted out soon.
My plans are not always the plans that I ultimately receive. This was a bit of a mental blow to me but in the big picture it's just a small glitch.