@jacqincalifornia
Was diagnosed with LBBB about 25 years ago. The PVCs and PACs started up but other than nuisance and feeling them taking my pulse the did not get bad until 2015.

I had an ablation about 10 years ago in RV which stopped the PVCs in the RV. But after a few years the LV PVCs started increasing dramatically. My EP (Mayo Jacksonville) wanted to wait for another ablation and try medications as the PVCs coming from LV were 3 different areas.

I was put on Mexiletine (spell) and take it every 8 hours. Dramatically reduced PVCs and PACs non sustained VTAC.

I found stress, anxiety, worrying, caused more PVCs and PACs and my EP confirmed they will. Caffine is another trigger. What I found for me was to engage in exercise (check with your doctors) that I liked really helped. I do water aerobics 5 days a week. I also read quite a bit (history) as relaxes me also. Weight can also (per my EP) can cause PACs and PVCs with extra strain on heart.

I am not familiar with bigemmy. What is that? I had a colonoscopy about 2.5 years ago and had anesthesia but had no complications. I do know that that I have gone into ER after my ICD/Pacemaker has gone off (I had my first implanted in 2006 as EF was getting low with cardiomyopathy) and first thing the check is electrolytes.

I hope my experience with this helped.