Tom, home heart rate monitors are not always accurate.
With that said, I too am on Metroproplol. My heart rate at times, usually when I first wake up, or am at rest, is as low as 46-47. Metroproplol is supposed to slow your heart rate. Why your HR spikes to 114 is not something I can explain.
I've also had PVCs. My understanding is that unless your PVCs are exceeding 10,000 a day, as measured by a 24 hour holter monitor, then they are usually not dangerous,
If this is really bothering you, even of its just from a mental standpoint, causing you anxiety (which itself can cause irregular heart rates), then u should try to find another Cardiologist who can see you sooner, and if that's not possible, then go to the emergency room, and tell them you want to be evaluated by a cardiologist, not a general ER doc.
Dx Age 64 Nov 2014, 4.3
BX 3 of 12 cores positive original pathologyG6, G6, G8 (3+5)
downgraded to 3+3=6 by Dr Epstein, JH
RALP with Dr Ash Tewari Jan 6, 2015
Post surgical pathology – G7 (3+4), ECE, Margins, LN, SV all negative
PSA @ 6 weeks 2/15, .<02, 4/15 <.02 7/15 <.02, 10/15 0.00 (new lab) , 1/16, 0.00
My Story: tinyurl.com/oo9x4aq