Oh my aching...

Which of these things do you think benefits profusely from the heating pad I'm using?

1) My right arm
2) My shoulder
3) My neck
4) My back

Answer: You're right!

I've been having some weird muscle pain recently, which is unrelated to any sort of overexertion. Unfortunately.

Fortunately, I have the aforementioned heating pad. The cord is currently hanging out of my brown velour v-neck (I was inspired). I've positioned it for maximum relief, wedged over my shoulder, upper back, and upper arm. Under the v-neck, but above the t-shirt. Wouldn't want to get burned, you know. When I'm near a plug, it's connected.

How old am I, again?