New comer - HRV and rest heart rate and sleep stress

Got my Whoop two days back to track my sleep as wearing my apple watch to sleep was difficult. But boy all my confidence went down. i have lost around 60 pounds in the last 2 years and my Heart rate variability and Rest heart rate had improved a lot. On apple watch my HRV was 30. but now my HRV is being shown as 12. As far as i know 12 HRV is pretty. I have no known heart disease but my family history is full of heart attacks and problems. I do strength training 2-3 times a week and walk or do spinning every day.

My sleep stress is also high compared to day time. All the stats of Whoop are confusing for me and this whole stress concept also seems confusing. Should i see my doctor about the HRV ? what stats should i be concerned or important. My rest heart rate is also being shown as way higher on Whoop than Apple watch