I dislike heating pads, I'm weird like that. I took a hot shower with one of those crazy shower heads earlier and it helped for a bit.
Its not related to anything but my dumb ass not paying enough attention while workingout then sleeping on it funny. I get a tweaked shoulder a few times a year because I am stubborn and overdo stuff.
You stubborn? Nahhhhh. ; )
I know the frustration. I'm all worn to bits right now because I went for several days without sleeping enough and now I'm paying for it. With no time to do so. Ugh.