For the last several months but I’ve had a pain in my left arm that comes and goes. It initially started as a pain in my back between my shoulder blades and my upper left arm. It wasn’t really a pain but felt like someone had rubbed icy hot on my skin. My doctor put me on gabapentin which seems to do the trick but after about a month she said to stop taking it and see how I felt. On days when I don’t take it I sometimes get full on throbbing and sharp pain in my entire left arm. Today when it came on it was particularly bad and I also had terrible indigestion at the same time. It’s starting to make me worry. Anyone else ever experienced something like this?