Alicia,
No its my entire arms. If I sleep with my arms raised above my head (either on my back or stomach) they tend to go numb. For example, I slept on my stomach with my hands under my pillow and my arms fell asleep. I actually slept with two pillows last night and it seemed to help when I sleep on my side. It’s strange because it only started to happen after I got serious with my weight lifting.