Waking up with a tight chest (Broken Sleep)

[Wintear]

So last night, and few other nights before too, I kept waking up every hour or two hours on the dot. Each time, my chest felt awfully tight. It was as if a slight weight had been lowered down onto it. It was rather uncomfortable and persisted through-out the night and even into the morning. It seemed to alleviate after fully waking up, getting out of bed, and starting my day.

It's just a bit concerning to me. Could this be anxiety-related? I do suffer from GERD, so I don't know if that could possibly tie into things...