Have you been lifting things or biking or something that puts pressure on your elbow nerve? I find after doing these things (pushing prams, biking, lifting child etc.) I get this. Unlikely to be your heart.
I too am searching the internet for the same reason. I awake at night and my arms and legs are asleep. I know I am not laying on them funny. This has just started happening in the last month. I am a 44 yr old male in decent shape. I have fonung no answers to my questions if you do please respond. i also have problems with my extremities falling asleep during the day..weird isn't it.
I have had this before. I do not know what caused it, but it went away. I think it may have been some medicine I stopped, some supplement that I started, or a coronary artery blockage cleared by a stent.
I am sorry to be so vague. Are you taking any medications now?
A vitamin B-12 shortage can cause these types of symptoms. I take a proton pump inhibitor, prilosec 40 mg/day, which decreases the amount of B-12 absorbed by your small intestines. My direct B-12 measurement was low, so I started getting monthly B-12 injections. I think this is what made it all get better. Hope this helps...
Jack