I will tell you from my personal experience; you have to deal with your mental wellness first. Up until 2 years ago I was a wreck (some days I still am) emotionally & mentally wrecked from dealing with life and health.
Stress and anxiety only make symptoms worse and it sounds like with your dad it may be adding to your anxiety/stress. I'm so sorry about your dad, my dad had Lymphoma and passed away back in 2010 which added to my stress and symptoms.
Have you tried anything to help with symptoms? meditation, exercise, therapy, meds etc can be beneficial to help cope with what's going on.
When my HR is lower esp resting, I notice a huge increase in how much I feel pvc's. PAC's not so much, they just get stuck in my throat and I can't catch my breath.
If it's any help, if you have a structurally normal heart, the chances of something happening is very slim and those beats are more of a nuisance than anything.
I've had so many arrhythmia's dr's are surprised I handle them as well as I do. No one believes with 54,000 pvc's daily that I was active - walking, running and keeping up with 4 kids and 2 businesses. I've lived with them so long (40 years) that I just ignore them for the most part. I had an ablation and ICD implanted for HOCM back in 2009 but I still have 10,000 - 15,000 pvc's and VT episodes.
I had to back away from everything health wise and medical related and find what worked for me to get my head on straight and work out the anxiety.
I did therapy, which was strange and I felt like I was complaining constantly. I also tried different meds, which worked pretty well (Lamictal - which takes caution using it), until I felt like I was in control a bit more of my emotions/mental health and now it's more of alternative therapy and meditation that works.
It's not going to be easy, but find what works for you and keep a journal of symptoms and feelings, that really helps a lot to put it into words.
oh ps. try no alcohol also, I can't remember the technical reasons but I'm sure someone with knowledge will know - something like it causes dehydration and makes your heart pump and work harder,
Update. So I had some food shortly after posting this and walked down to the shop for nicotine patches. The shop was closed. I caved into cravings and had a cigarette and nothing happened.
My brother invited me for a family meal so I had some more food and a beer. He bought it for me. I explained I was ill and didn't want one but it came with food so I drank it slow.
Nothing happened. I had another cigarette and no PACs/PVCs.
This is really doing my head in now because I don't know what the hell caused them earlier today. They were vicious!
Tomorrow I'll be picking up my patches and kick this stupid smoking habit. I don't want to smoke after my Dad's Cancer diagnosis.
Any advice would still be greatly appreciated.