Numbness while I Sleep

Hi,
I am a 39 year old women,and for the last couple of months I can not sleep on my left side or my arms and legs will go numb.I'm over weight,trying to loosw the pounds.I have been put on a loww blood pressure pills and was told that my cholesterol is high.Could any of this cause the numbnes?Thank you

[Cleveland Clinic]

The numbness is probably a result of you sleeping on your arm while on the left side and is very unlikely to be related to your heart.  The other possibility is that while sleeping on the left side you cause some type of nerve root compression leading to these symptoms as well.  Again, none of this is likely to be heart related.